slumbrous | (adjective) inclined to or marked by drowsiness | Synonyms: slumberous, slumbery, somnolent |
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(adjective) quiet and tranquil | Synonyms: slumberous |
solanaceous | (adjective) of or relating to plants of the family Solanaceae (the potato family) | - |
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solicitous | (adjective) showing hovering attentiveness | - |
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(adjective) full of anxiety and concern | - |
somniferous | (adjective) sleep inducing | Synonyms: hypnagogic, hypnogogic, somnific, soporiferous, soporific |
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sonorous | (adjective) full and loud and deep | Synonyms: heavy |
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soporiferous | (adjective) sleep inducing | Synonyms: hypnagogic, hypnogogic, somniferous, somnific, soporific |
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(adjective) inducing mental lethargy | Synonyms: narcotic, soporific |
sorcerous | (adjective) possessing or using or characteristic of or appropriate to supernatural powers | Synonyms: charming, magic, magical, witching, wizard, wizardly |
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spacious | (adjective) (of buildings and rooms) having ample space | Synonyms: roomy |
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(adjective) very large in expanse or scope | Synonyms: broad, wide |
specious | (adjective) plausible but false | Synonyms: spurious |
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(adjective) based on pretense; deceptively pleasing | Synonyms: gilded, glossy, meretricious |
spermous | (adjective) consisting of or resembling spermatozoa | Synonyms: spermatic |
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spinous | (adjective) having spines | Synonyms: spiny |
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(adjective) shaped like a spine or thorn | Synonyms: acanthoid, acanthous |
spiritous | (adjective) containing or of the nature of alcohol | Synonyms: spirituous |
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spirituous | (adjective) containing or of the nature of alcohol | Synonyms: spiritous |
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splendiferous | (adjective) having great beauty and splendor | Synonyms: glorious, resplendent, splendid |
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spontaneous | (adjective) happening or arising without apparent external cause | Synonyms: self-generated |
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(adjective) said or done without having been planned or written in advance | Synonyms: ad-lib, unwritten |
sporogenous | (adjective) producing spores or reproducing by means of spores | - |
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spurious | (adjective) false or fake; not what it appears to be | Synonyms: inauthentic, unauthentic |
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(adjective) plausible but false | Synonyms: specious |
(adjective) born out of wedlock | Synonyms: bastardly, misbegot, misbegotten |
(adjective) ostensibly valid, but not actually valid | - |
stannous | (adjective) of or relating to or containing tin | Synonyms: stannic |
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stertorous | (adjective) of breathing having a heavy snoring sound | - |
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stoloniferous | (adjective) producing stolons | - |
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stomatous | (adjective) having a mouth or mouthlike opening | - |
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(adjective) relating to or constituting plant stomata | Synonyms: stomatal |
(adjective) relating to or of the nature of or having a mouth or mouthlike opening | Synonyms: stomatal |
strenuous | (adjective) taxing to the utmost; testing powers of endurance | Synonyms: arduous, straining |
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(adjective) characterized by or performed with much energy or force | - |
studious | (adjective) marked by care and effort | - |
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(adjective) characterized by diligent study and fondness for reading | Synonyms: bookish |
stupendous | (adjective) so great in size or force or extent as to elicit awe | Synonyms: colossal, prodigious |
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stuporous | (adjective) stunned or confused and slow to react (as from blows or drunkenness or exhaustion) | Synonyms: dazed, foggy, groggy, logy |
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subaqueous | (adjective) growing or remaining under water | Synonyms: subaquatic, submerged, submersed, underwater |
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subconscious | (adjective) just below the level of consciousness | - |
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subcutaneous | (adjective) relating to or located below the epidermis | Synonyms: hypodermic |
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subterraneous | (adjective) lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed) | Synonyms: subterranean, ulterior |
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(adjective) being or operating under the surface of the earth | Synonyms: subterranean |
sulfurous | (adjective) of or related to or containing sulfur or derived from sulfur | Synonyms: sulphurous |
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(adjective) characterized by oppressive heat and humidity | Synonyms: stifling, sulphurous, sultry |
(adjective) harsh or corrosive in tone | Synonyms: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulphurous, virulent, vitriolic |
sulphurous | (adjective) of or related to or containing sulfur or derived from sulfur | Synonyms: sulfurous |
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(adjective) characterized by oppressive heat and humidity | Synonyms: stifling, sulfurous, sultry |
(adjective) harsh or corrosive in tone | Synonyms: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, virulent, vitriolic |
sumptuous | (adjective) ostentatiously rich and superior in quality | Synonyms: deluxe, gilded, grand, lush, luxurious, opulent, princely |
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supercilious | (adjective) having or showing arrogant superiority to and disdain of those one views as unworthy | Synonyms: disdainful, haughty, imperious, lordly, overbearing, prideful, sniffy, swaggering |
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(adjective) expressive of contempt | Synonyms: sneering, snide |
superfluous | (adjective) more than is needed, desired, or required | Synonyms: excess, extra, redundant, spare, supererogatory, supernumerary, surplus |
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(adjective) serving no useful purpose; having no excuse for being | Synonyms: otiose, pointless, purposeless, senseless, wasted |
superstitious | (adjective) showing ignorance of the laws of nature and faith in magic or chance | - |
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suppositious | (adjective) based primarily on surmise rather than adequate evidence | Synonyms: conjectural, divinatory, hypothetic, hypothetical, supposed, suppositional, supposititious |
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supposititious | (adjective) based primarily on surmise rather than adequate evidence | Synonyms: conjectural, divinatory, hypothetic, hypothetical, supposed, suppositional, suppositious |
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surplus | (adjective) more than is needed, desired, or required | Synonyms: excess, extra, redundant, spare, supererogatory, superfluous, supernumerary |
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surreptitious | (adjective) marked by quiet and caution and secrecy; taking pains to avoid being observed | Synonyms: furtive, sneak, sneaky, stealthy |
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(adjective) conducted with or marked by hidden aims or methods | Synonyms: clandestine, cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, secret, undercover, underground |
suspicious | (adjective) openly distrustful and unwilling to confide | Synonyms: leery, mistrustful, untrusting, wary |
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(adjective) not as expected | Synonyms: fishy, funny, shady, suspect |
susurrous | (adjective) characterized by soft sounds | Synonyms: murmurous, rustling, soughing |
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sympetalous | (adjective) having a corolla composed of partially or wholly fused petals forming a corolla shaped like a tube or funnel | Synonyms: gamopetalous |
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symphonious | (adjective) harmonious in sound | Synonyms: symphonic |
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syncarpous | (adjective) (of ovaries of flowering plants) consisting of united carpels | - |
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synchronous | (adjective) occurring or existing at the same time or having the same period or phase | Synonyms: synchronal, synchronic |
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(adjective) (digital communication) pertaining to a transmission technique that requires a common clock signal (a timing reference) between the communicating devices in order to coordinate their transmissions | - |
synoecious | (adjective) having male and female reproductive organs mixed in the same gametoecium | Synonyms: synoicous |
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synoicous | (adjective) having male and female reproductive organs mixed in the same gametoecium | Synonyms: synoecious |
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synonymous | (adjective) (of words) meaning the same or nearly the same | - |
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tedious | (adjective) using or containing too many words | Synonyms: long-winded, verbose, windy, wordy |
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(adjective) so lacking in interest as to cause mental weariness | Synonyms: boring, deadening, dull, ho-hum, irksome, slow, tiresome, wearisome |
temerarious | (adjective) presumptuously daring | Synonyms: daredevil |
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tempestuous | (adjective) (of the elements) as if showing violent anger | Synonyms: angry, furious, raging, wild |
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(adjective) characterized by violent emotions or behavior | Synonyms: stormy |
tenacious | (adjective) good at remembering | Synonyms: long, recollective, retentive |
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(adjective) sticking together | Synonyms: coherent |
(adjective) stubbornly unyielding | Synonyms: dogged, dour, persistent, pertinacious, unyielding |
tendencious | (adjective) having or marked by a strong tendency especially a controversial one | Synonyms: tendentious |
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tendentious | (adjective) having or marked by a strong tendency especially a controversial one | Synonyms: tendencious |
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tendinous | (adjective) consisting of tendons or resembling a tendon | Synonyms: sinewy |
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tenebrious | (adjective) dark and gloomy | Synonyms: tenebrific, tenebrous |
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tenebrous | (adjective) dark and gloomy | Synonyms: tenebrific, tenebrious |
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tenuous | (adjective) lacking substance or significance | Synonyms: flimsy, fragile, slight, thin |
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(adjective) very thin in gauge or diameter | - |
(adjective) having thin consistency | - |
testaceous | (adjective) relating to or possessing a testa or hard shell | - |
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tetramerous | (adjective) having or consisting of four similar parts; tetramerous flowers | - |
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thunderous | (adjective) loud enough to cause (temporary) hearing loss | Synonyms: deafening, earsplitting, thundery |
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(adjective) extremely ominous | - |
timorous | (adjective) timid by nature or revealing timidity | Synonyms: fearful, trepid |
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tomentous | (adjective) densely covered with short matted woolly hairs | Synonyms: tomentose |
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tortious | (adjective) of or pertaining to the nature of a tort | - |
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tortuous | (adjective) highly complex or intricate and occasionally devious | Synonyms: Byzantine, convoluted, involved, knotty, labyrinthine, tangled |
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(adjective) marked by repeated turns and bends | Synonyms: twisting, twisty, voluminous, winding |
(adjective) not straightforward | - |
torturous | (adjective) extremely painful | Synonyms: agonising, agonizing, excruciating, harrowing, torturesome, torturing |
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traitorous | (adjective) having the character of, or characteristic of, a traitor | Synonyms: faithless, treasonable, treasonous, unfaithful |
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tralatitious | (adjective) having been passed along from generation to generation | Synonyms: handed-down |
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transcutaneous | (adjective) through the unbroken skin; refers to medications applied directly to the skin (creams or ointments) or in time-release forms (skin patches) | Synonyms: percutaneous, transdermal, transdermic |
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treacherous | (adjective) dangerously unstable and unpredictable | Synonyms: unreliable |
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(adjective) tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans | Synonyms: perfidious, punic |
treasonous | (adjective) having the character of, or characteristic of, a traitor | Synonyms: faithless, traitorous, treasonable, unfaithful |
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tremendous | (adjective) extraordinarily good or great; used especially as intensifiers | Synonyms: fantastic, grand, howling, marvellous, marvelous, phenomenal, rattling, terrific, wonderful, wondrous |
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(adjective) extraordinarily large in size or extent or amount or power or degree | Synonyms: enormous |
(adjective) extreme in degree or extent or amount or impact | Synonyms: awful, frightful, terrible |
tremulous | (adjective) (of the voice) quivering as from weakness or fear | Synonyms: quavering |
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troublous | (adjective) full of trouble | - |
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tuberculous | (adjective) constituting or afflicted with or caused by tuberculosis or the tubercle bacillus | Synonyms: tubercular |
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tuberous | (adjective) of or relating to or resembling a tuber | - |
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tumultuous | (adjective) characterized by unrest or disorder or insubordination | Synonyms: disruptive, riotous, troubled, turbulent |
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tyrannous | (adjective) marked by unjust severity or arbitrary behavior | Synonyms: oppressive, tyrannical |
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ubiquitous | (adjective) being present everywhere at once | Synonyms: omnipresent |
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ulcerous | (adjective) having an ulcer or canker | Synonyms: cankerous, ulcerated |
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umbelliferous | (adjective) relating to or belonging to plants of the family Umbelliferae | - |
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umbrageous | (adjective) angered at something unjust or wrong | Synonyms: incensed, indignant, outraged |
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(adjective) filled with shade | Synonyms: shadowed, shadowy, shady |
unadventurous | (adjective) lacking in boldness | - |
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unambiguous | (adjective) having or exhibiting a single clearly defined meaning | - |
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(adjective) admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion | Synonyms: unequivocal, univocal |
unambitious | (adjective) having little desire for success or achievement | Synonyms: ambitionless |
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unanimous | (adjective) in complete agreement | Synonyms: consentaneous, consentient |
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(adjective) acting together as a single undiversified whole | Synonyms: solid, whole |
unceremonious | (adjective) without due formalities | - |
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(adjective) without ceremony or formality | Synonyms: unceremonial |
unchivalrous | (adjective) offensively discourteous | Synonyms: caddish, ungallant |
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unconscientious | (adjective) not conscientious | - |
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unconscious | (adjective) not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead | - |
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(adjective) without conscious volition | - |
(adjective) (followed by `of') not knowing or perceiving | - |
unctuous | (adjective) unpleasantly and excessively suave or ingratiating in manner or speech | Synonyms: buttery, fulsome, oily, oleaginous, smarmy, soapy |
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undesirous | (adjective) having or feeling no desire | Synonyms: undesiring |
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unfastidious | (adjective) marked by an absence of due or proper care or attention to detail; not concerned with cleanliness | - |
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(adjective) not exacting in nutritional requirements | - |
ungenerous | (adjective) lacking in magnanimity | Synonyms: meanspirited |
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(adjective) unwilling to spend (money, time, resources, etc.) | Synonyms: stingy |
unglamorous | (adjective) not challenging; dull and lacking excitement | Synonyms: commonplace, humdrum, prosaic, unglamourous |
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unglamourous | (adjective) not challenging; dull and lacking excitement | Synonyms: commonplace, humdrum, prosaic, unglamorous |
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ungracious | (adjective) lacking charm and good taste | - |
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(adjective) lacking social graces | Synonyms: discourteous |
ungregarious | (adjective) (of animals) not gregarious | - |
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(adjective) (of plants) growing together in groups that are not close together | - |
(adjective) not disposed to seek company | - |
unharmonious | (adjective) not in harmony | Synonyms: inharmonious |
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unhazardous | (adjective) thought to be devoid of risk | Synonyms: risk-free, riskless |
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