| abreast | (adjective) being up to particular standard or level especially in being up to date in knowledge | Synonyms: au courant, au fait, up on |
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| achondroplastic | (adjective) of or relating to achondroplasia | - |
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| aghast | (adjective) struck with fear, dread, or consternation | Synonyms: appalled, dismayed, shocked |
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| alabaster | (adjective) of or resembling alabaster | Synonyms: alabastrine |
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| alabastrine | (adjective) of or resembling alabaster | Synonyms: alabaster |
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| anaplastic | (adjective) of or relating to anaplasia | - |
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| anastigmatic | (adjective) not astigmatic | Synonyms: stigmatic |
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| (adjective) pertaining to a lens or lens system free of astigmatism (able to form point images) | Synonyms: stigmatic |
| anastomotic | (adjective) of or relating to or exhibiting anastomosis | - |
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| antineoplastic | (adjective) used in the treatment of cancer | Synonyms: anticancer, antitumor, antitumour |
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| astatic | (adjective) not static or stable | - |
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| asteriated | (adjective) (of some crystals especially gemstones) exhibiting asterism | - |
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| asterisked | (adjective) marked with an asterisk | Synonyms: starred |
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| asterismal | (adjective) relating to asterisms or constellations | - |
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| asternal | (adjective) not connected to the sternum or breastbone | - |
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| asteroid | (adjective) shaped like a star | Synonyms: star-shaped |
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| asteroidal | (adjective) of or relating to or resembling an asteroid | - |
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| asthenic | (adjective) having a slender physique | - |
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| (adjective) lacking energy or vitality | Synonyms: adynamic, debilitated, enervated |
| asthmatic | (adjective) relating to breathing with a whistling sound | Synonyms: wheezing, wheezy |
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| astigmatic | (adjective) of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images | - |
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| astir | (adjective) on the move | Synonyms: about |
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| (adjective) out of bed | Synonyms: up |
| astomatal | (adjective) lacking a stoma or stomata | - |
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| astomatous | (adjective) having no mouth or mouthlike opening | Synonyms: mouthless |
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| astonied | (adjective) filled with the emotional impact of overwhelming surprise or shock | Synonyms: amazed, astonished, astounded, stunned |
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| astonished | (adjective) filled with the emotional impact of overwhelming surprise or shock | Synonyms: amazed, astonied, astounded, stunned |
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| astonishing | (adjective) so surprisingly impressive as to stun or overwhelm | Synonyms: astounding, staggering, stupefying |
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| (adjective) surprising greatly | Synonyms: amazing |
| astounded | (adjective) filled with the emotional impact of overwhelming surprise or shock | Synonyms: amazed, astonied, astonished, stunned |
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| astounding | (adjective) so surprisingly impressive as to stun or overwhelm | Synonyms: astonishing, staggering, stupefying |
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| (adjective) bewildering or striking dumb with wonder | Synonyms: dumbfounding, dumfounding |
| astragalar | (adjective) of or relating to the anklebone | - |
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| astral | (adjective) being or relating to or resembling or emanating from stars | Synonyms: stellar |
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| astringent | (adjective) tending to draw together or constrict soft organic tissue | - |
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| (adjective) sour or bitter in taste | Synonyms: acerb, acerbic |
| astrocytic | (adjective) of or relating to or containing large star-shaped cells in the neuroglia | - |
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| astrological | (adjective) relating to or concerned with astrology | - |
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| astronautic | (adjective) of or belonging to astronauts or the science of astronautics | Synonyms: astronautical |
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| astronautical | (adjective) of or belonging to astronauts or the science of astronautics | Synonyms: astronautic |
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| astronomic | (adjective) relating or belonging to the science of astronomy | Synonyms: astronomical |
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| (adjective) inconceivably large | Synonyms: astronomical, galactic |
| astronomical | (adjective) relating or belonging to the science of astronomy | Synonyms: astronomic |
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| (adjective) inconceivably large | Synonyms: astronomic, galactic |
| astrophysical | (adjective) of or concerned with astrophysics | - |
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| astute | (adjective) marked by practical hardheaded intelligence | Synonyms: sharp, shrewd |
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| astylar | (adjective) lacking columns or pillars | - |
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| autoplastic | (adjective) of or relating to or involved in autoplasty | - |
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| bastard | (adjective) fraudulent; having a misleading appearance | Synonyms: bogus, fake, phoney, phony |
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| bastardised | (adjective) deriving from more than one source or style | Synonyms: bastardized |
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| bastardized | (adjective) deriving from more than one source or style | Synonyms: bastardised |
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| bastardly | (adjective) of no value or worth | Synonyms: mean |
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| (adjective) born out of wedlock | Synonyms: misbegot, misbegotten, spurious |
| bastioned | (adjective) secured with bastions or fortifications | Synonyms: fortified |
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| beastly | (adjective) resembling a beast; showing lack of human sensibility | Synonyms: bestial, brutal, brute, brutish |
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| (adjective) (informal) very unpleasant | Synonyms: god-awful, hellish |
| bedfast | (adjective) confined to bed (by illness) | Synonyms: bedrid, bedridden, sick-abed |
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| blasted | (adjective) expletives used informally as intensifiers | Synonyms: blame, blamed, blessed, damn, damned, darned, deuced, goddam, goddamn, goddamned, infernal |
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| blastemal | (adjective) of or relating to blastemata | Synonyms: blastematic, blastemic |
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| blastematic | (adjective) of or relating to blastemata | Synonyms: blastemal, blastemic |
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| blastemic | (adjective) of or relating to blastemata | Synonyms: blastemal, blastematic |
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| blasting | (adjective) causing injury or blight; especially affecting with sudden violence or plague or ruin | Synonyms: ruinous |
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| (adjective) unpleasantly loud and penetrating | Synonyms: blaring |
| blastocoelic | (adjective) of or relating to a segmentation cavity | - |
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| blastodermatic | (adjective) of or relating to a blastoderm | Synonyms: blastodermic |
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| blastodermic | (adjective) of or relating to a blastoderm | Synonyms: blastodermatic |
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| blastogenetic | (adjective) of or relating to blastogenesis | - |
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| blastomeric | (adjective) of or relating to a blastomere | - |
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| blastomycotic | (adjective) of or relating to or characteristic of blastomycosis | - |
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| blastoporal | (adjective) of or relating to a blastopore | Synonyms: blastoporic |
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| blastoporic | (adjective) of or relating to a blastopore | Synonyms: blastoporal |
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| blastospheric | (adjective) of or relating to a blastula | Synonyms: blastular |
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| blastular | (adjective) of or relating to a blastula | Synonyms: blastospheric |
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| boastful | (adjective) exhibiting self-importance | Synonyms: big, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandising, self-aggrandizing |
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| bombastic | (adjective) ostentatiously lofty in style | Synonyms: declamatory, large, orotund, tumid, turgid |
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| breasted | (adjective) having a breast or breasts; or breasts as specified; used chiefly in compounds | - |
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| breastless | (adjective) without a breast | - |
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| bypast | (adjective) well in the past; former | Synonyms: bygone, departed, foregone, gone |
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| cadastral | (adjective) of or relating to the records of a cadastre | - |
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| casteless | (adjective) not belonging to or having been expelled from a caste and thus having no place or status in society | Synonyms: outcaste |
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| castellated | (adjective) having or resembling repeated square indentations like those in a battlement | Synonyms: battlemented, castled, crenelated, embattled |
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| castled | (adjective) having or resembling repeated square indentations like those in a battlement | Synonyms: battlemented, castellated, crenelated, embattled |
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| castrated | (adjective) deprived of sexual capacity or sexual attributes | Synonyms: unsexed |
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| cataplastic | (adjective) of or relating to cataplasia | - |
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| catastrophic | (adjective) extremely harmful; bringing physical or financial ruin | Synonyms: ruinous |
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| chaste | (adjective) morally pure (especially not having experienced sexual intercourse) | - |
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| (adjective) abstaining from unlawful sexual intercourse | - |
| (adjective) pure and simple in design or style | - |
| chiliastic | (adjective) relating to or believing in the millennium of peace and happiness | Synonyms: millenarian |
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| clastic | (adjective) capable of being taken apart | - |
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| (adjective) of or belonging to or being a rock composed of fragments of older rocks (e.g., conglomerates or sandstone) | - |
| coastal | (adjective) located on or near or bordering on a coast | - |
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| (adjective) of or relating to a coast | - |
| (adjective) along or following a coast | Synonyms: coastwise |
| coastwise | (adjective) along or following a coast | Synonyms: coastal |
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| colorfast | (adjective) having color that is resistant to fading or running | - |
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| contrasting | (adjective) strikingly different; tending to contrast | Synonyms: contrastive |
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| contrastive | (adjective) of words so related that one contrasts with the other | Synonyms: incompatible |
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| (adjective) strikingly different; tending to contrast | Synonyms: contrasting |
| (adjective) syntactically establishing a relation of contrast between sentences or elements of a sentence | - |
| contrasty | (adjective) having sharp differences between black and white | - |
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| cragfast | (adjective) stranded on or as if on a crag | - |
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| cytoplastic | (adjective) of or relating to a cytoplast | - |
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| dastard | (adjective) despicably cowardly | Synonyms: dastardly |
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| dastardly | (adjective) despicably cowardly | Synonyms: dastard |
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| devastating | (adjective) physically or spiritually devastating; often used in combination | Synonyms: crushing |
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| (adjective) making light of | Synonyms: annihilating, withering |
| (adjective) wreaking or capable of wreaking complete destruction | Synonyms: annihilating, annihilative, withering |
| diastolic | (adjective) of or relating to a diastole or happening during a diastole | - |
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| disastrous | (adjective) (of events) having extremely unfortunate or dire consequences; bringing ruin | Synonyms: black, calamitous, fatal, fateful |
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| distasteful | (adjective) highly offensive; arousing aversion or disgust | Synonyms: disgustful, disgusting, foul, loathly, loathsome, repellant, repellent, repelling, revolting, skanky, wicked, yucky |
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| (adjective) not pleasing in odor or taste | Synonyms: unsavory, unsavoury |
| downcast | (adjective) filled with melancholy and despondency | Synonyms: blue, depressed, dispirited, down, down in the mouth, downhearted, gloomy, grim, low-spirited, low |
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| (adjective) directed downward | - |
| drastic | (adjective) forceful and extreme and rigorous | - |
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| dynastic | (adjective) of or relating to or characteristic of a dynasty | - |
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| dysplastic | (adjective) relating to or evidencing dysplasia | - |
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| east | (adjective) situated in or facing or moving toward the east | - |
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| eastbound | (adjective) moving toward the east | Synonyms: eastward |
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| easterly | (adjective) from the east; used especially of winds | Synonyms: eastern |
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| (adjective) lying in or toward the east | Synonyms: eastern |
| eastern | (adjective) relating to or characteristic of regions of eastern parts of the world | - |
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| (adjective) of or characteristic of eastern regions of the United States | - |
| (adjective) lying toward or situated in the east | - |
| (adjective) from the east; used especially of winds | Synonyms: easterly |
| (adjective) lying in or toward the east | Synonyms: easterly |
| easternmost | (adjective) farthest to the east | Synonyms: eastmost |
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