| deductible | (adjective) acceptable as a deduction (especially as a tax deduction) | - |
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| deductive | (adjective) involving inferences from general principles | - |
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| (adjective) relating to logical deduction | - |
| defeasible | (adjective) capable of being annulled or voided or terminated | - |
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| defective | (adjective) markedly subnormal in structure or function or intelligence or behavior | - |
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| (adjective) having a defect | Synonyms: faulty |
| (adjective) not working properly | Synonyms: bad |
| defendable | (adjective) capable of being defended | Synonyms: defensible |
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| defensible | (adjective) capable of being defended | Synonyms: defendable |
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| defensive | (adjective) intended or appropriate for defending against or deterring aggression or attack | - |
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| (adjective) attempting to justify or defend in speech or writing | Synonyms: justificative, justificatory |
| definable | (adjective) capable of being defined, limited, or explained | - |
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| definite | (adjective) precise; explicit and clearly defined | - |
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| (adjective) known for certain | - |
| definitive | (adjective) supplying or being a final or conclusive settlement | Synonyms: determinate |
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| (adjective) clearly defined or formulated | Synonyms: unequivocal |
| (adjective) of recognized authority or excellence | Synonyms: authoritative |
| deflective | (adjective) capable of changing the direction (of a light or sound wave) | Synonyms: refractive |
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| defoliate | (adjective) deprived of leaves | Synonyms: defoliated |
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| degage | (adjective) free and relaxed in manner | - |
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| (adjective) showing lack of emotional involvement | Synonyms: detached, uninvolved |
| degenerate | (adjective) unrestrained by convention or morality | Synonyms: debauched, degraded, dissipated, dissolute, fast, libertine, profligate, riotous |
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| degenerative | (adjective) (of illness) marked by gradual deterioration of organs and cells along with loss of function | - |
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| degressive | (adjective) going down by steps | - |
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| (adjective) (of taxes) gradually decreasing in rate on sums below a certain amount | - |
| delectable | (adjective) capable of arousing sexual desire | Synonyms: sexually attractive |
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| (adjective) extremely pleasing to the sense of taste | Synonyms: delicious, luscious, pleasant-tasting, scrumptious, toothsome, yummy |
| deliberate | (adjective) carefully thought out in advance | Synonyms: calculated, measured |
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| (adjective) unhurried and with care and dignity | Synonyms: careful, measured |
| (adjective) characterized by conscious design or purpose | Synonyms: intentional, knowing |
| deliberative | (adjective) involved in or characterized by deliberation and discussion and examination | - |
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| delible | (adjective) capable of being deleted | - |
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| delicate | (adjective) exquisitely fine and subtle and pleasing; susceptible to injury | - |
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| (adjective) easily broken or damaged or destroyed | Synonyms: fragile, frail |
| (adjective) difficult to handle; requiring great tact | Synonyms: ticklish, touchy |
| (adjective) developed with extreme delicacy and subtlety | Synonyms: finespun |
| (adjective) of an instrument or device; capable of registering minute differences or changes precisely | - |
| (adjective) marked by great skill especially in meticulous technique | - |
| (adjective) easily hurt | Synonyms: soft |
| delineate | (adjective) represented accurately or precisely | Synonyms: delineated, represented |
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| delineative | (adjective) depicted in a recognizable manner | Synonyms: depictive |
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| deliverable | (adjective) suitable for or ready for delivery | - |
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| delusive | (adjective) inappropriate to reality or facts | Synonyms: false |
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| deluxe | (adjective) elegant and sumptuous | Synonyms: de luxe, luxe |
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| (adjective) ostentatiously rich and superior in quality | Synonyms: gilded, grand, lush, luxurious, opulent, princely, sumptuous |
| demode | (adjective) out of fashion | Synonyms: antique, ex, old-fashioned, old-hat, outmoded, passe, passee |
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| demonstrable | (adjective) necessarily or demonstrably true | Synonyms: incontrovertible |
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| (adjective) capable of being demonstrated or proved | Synonyms: provable |
| demonstrative | (adjective) given to or marked by the open expression of emotion | - |
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| (adjective) serving to demonstrate | Synonyms: illustrative |
| demure | (adjective) affectedly modest or shy especially in a playful or provocative way | Synonyms: coy, overmodest |
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| deniable | (adjective) capable of being denied or contradicted | - |
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| denigrative | (adjective) (used of statements) harmful and often untrue; tending to discredit or malign | Synonyms: calumniatory, calumnious, defamatory, denigrating, denigratory, libellous, libelous, slanderous |
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| denotative | (adjective) having the power of explicitly denoting or designating or naming | Synonyms: denotive |
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| (adjective) in accordance with fact or the primary meaning of a term | Synonyms: explicit |
| denotive | (adjective) having the power of explicitly denoting or designating or naming | Synonyms: denotative |
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| dense | (adjective) having high relative density or specific gravity | - |
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| (adjective) hard to pass through because of dense growth | Synonyms: thick |
| (adjective) slow to learn or understand; lacking intellectual acuity | Synonyms: dim, dull, dumb, obtuse, slow |
| (adjective) permitting little if any light to pass through because of denseness of matter | Synonyms: heavy, impenetrable |
| (adjective) having component parts closely crowded together | Synonyms: thick |
| dentate | (adjective) having toothlike projections in the margin | - |
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| denticulate | (adjective) having a very finely toothed margin | - |
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| denudate | (adjective) without the natural or usual covering | Synonyms: bald, denuded |
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| denumerable | (adjective) that can be counted | Synonyms: countable, enumerable, numerable |
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| denunciative | (adjective) containing warning of punishment | Synonyms: comminatory, denunciatory |
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| dependable | (adjective) worthy of reliance or trust | Synonyms: reliable |
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| (adjective) financially safe | Synonyms: good, safe, secure |
| (adjective) consistent in performance or behavior | Synonyms: rock-steady, steady-going |
| (adjective) worthy of being depended on | Synonyms: honest, reliable, true |
| depictive | (adjective) depicted in a recognizable manner | Synonyms: delineative |
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| depletable | (adjective) capable of being depleted | - |
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| deplorable | (adjective) bad; unfortunate | Synonyms: distressing, lamentable, pitiful, sad, sorry |
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| (adjective) of very poor quality or condition | Synonyms: execrable, miserable, woeful, wretched |
| (adjective) bringing or deserving severe rebuke or censure | Synonyms: condemnable, criminal, reprehensible, vicious |
| deprecative | (adjective) given to expressing disapproval | - |
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| (adjective) tending to diminish or disparage | Synonyms: belittling, deprecating, deprecatory, depreciative, depreciatory, slighting |
| depreciative | (adjective) tending to decrease or cause a decrease in value | Synonyms: depreciating, depreciatory |
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| (adjective) tending to diminish or disparage | Synonyms: belittling, deprecating, deprecative, deprecatory, depreciatory, slighting |
| derisive | (adjective) abusing vocally; expressing contempt or ridicule | Synonyms: gibelike, jeering, mocking, taunting |
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| derivable | (adjective) capable of being derived | - |
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| derivative | (adjective) resulting from or employing derivation | - |
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| derogative | (adjective) expressive of low opinion | Synonyms: derogatory, disparaging |
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| describable | (adjective) capable of being described | - |
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| descriptive | (adjective) of or relating to an approach to linguistic analysis that aims at the description of a language's forms, structures and usage | - |
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| (adjective) serving to describe or inform or characterized by description | - |
| desiccate | (adjective) lacking vitality or spirit; lifeless | Synonyms: arid, desiccated |
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| designate | (adjective) appointed but not yet installed in office | - |
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| designative | (adjective) serving to designate | - |
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| desirable | (adjective) worth having or seeking or achieving | - |
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| (adjective) worthy of being chosen especially as a spouse | Synonyms: suitable, worthy |
| desolate | (adjective) crushed by grief | - |
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| (adjective) providing no shelter or sustenance | Synonyms: bare, barren, bleak, stark |
| desperate | (adjective) showing extreme courage; especially of actions courageously undertaken in desperation as a last resort | Synonyms: heroic |
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| (adjective) fraught with extreme danger; nearly hopeless | Synonyms: dire |
| (adjective) arising from or marked by despair or loss of hope | Synonyms: despairing |
| (adjective) showing extreme urgency or intensity especially because of great need or desire | - |
| (adjective) desperately determined | Synonyms: do-or-die |
| (adjective) (of persons) dangerously reckless or violent as from urgency or despair | - |
| despicable | (adjective) morally reprehensible | Synonyms: slimy, ugly, unworthy, vile, worthless, wretched |
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| destitute | (adjective) completely wanting or lacking | Synonyms: barren, devoid, free, innocent |
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| (adjective) poor enough to need help from others | Synonyms: impoverished, indigent, necessitous, needy, poverty-stricken |
| destroyable | (adjective) capable of being destroyed | - |
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| destructible | (adjective) easily destroyed | - |
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| destructive | (adjective) causing destruction or much damage | - |
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| detachable | (adjective) designed to be unfastened or disconnected without damage | - |
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| detectable | (adjective) easily seen or detected | Synonyms: perceptible |
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| (adjective) capable of being detected | Synonyms: noticeable |
| determinable | (adjective) capable of being determined or limited or fixed | - |
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| determinate | (adjective) precisely determined or limited or defined; especially fixed by rule or by a specific and constant cause | - |
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| (adjective) not continuing to grow indefinitely at the apex | - |
| (adjective) supplying or being a final or conclusive settlement | Synonyms: definitive |
| determinative | (adjective) having the power or quality of deciding | Synonyms: deciding, determinant, determining |
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| detersive | (adjective) having cleansing power | Synonyms: detergent |
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| detestable | (adjective) unequivocally detestable | Synonyms: abominable, execrable, odious |
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| (adjective) offensive to the mind | Synonyms: abhorrent, obscene, repugnant, repulsive |
| detonative | (adjective) exploding almost instantaneously | - |
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| detractive | (adjective) causing to decrease in importance or value | - |
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| deviate | (adjective) markedly different from an accepted norm | Synonyms: aberrant, deviant |
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| dextrorse | (adjective) spiraling upward from left to right | Synonyms: dextrorsal |
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| diagnosable | (adjective) capable of being diagnosed | - |
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| diagonalizable | (adjective) capable of being transformed into a diagonal matrix | - |
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| diamantine | (adjective) consisting of diamonds or resembling diamonds | - |
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| differentiable | (adjective) possessing a differential coefficient or derivative | - |
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| (adjective) capable of being perceived as different | - |
| diffuse | (adjective) (of light) transmitted from a broad light source or reflected | Synonyms: diffused, soft |
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| (adjective) spread out; not concentrated in one place | - |
| (adjective) lacking conciseness | - |
| diffusive | (adjective) spreading by diffusion | Synonyms: diffusing, dispersive, disseminative |
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| digestible | (adjective) capable of being converted into assimilable condition in the alimentary canal | - |
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| digestive | (adjective) relating to or having the power to cause or promote digestion | - |
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| digitate | (adjective) resembling a finger | Synonyms: fingerlike |
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| digitigrade | (adjective) (of mammals) walking on the toes with the posterior part of the foot raised (as cats, dogs, and horses do) | - |
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| digressive | (adjective) (of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects | Synonyms: discursive, excursive, rambling |
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| (adjective) of superficial relevance if any | Synonyms: tangential |
| dilettante | (adjective) showing frivolous or superficial interest; amateurish | Synonyms: dilettanteish, dilettantish, sciolistic |
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| dilute | (adjective) reduced in strength or concentration or quality or purity | Synonyms: diluted |
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| diminutive | (adjective) very small | Synonyms: bantam, flyspeck, lilliputian, midget, petite, tiny |
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| dire | (adjective) fraught with extreme danger; nearly hopeless | Synonyms: desperate |
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| (adjective) causing fear or dread or terror | Synonyms: awful, direful, dread, dreaded, dreadful, fearful, fearsome, frightening, horrendous, horrific, terrible |
| directive | (adjective) showing the way by conducting or leading; imposing direction on | Synonyms: directing, directional, guiding |
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| dirigible | (adjective) capable of being steered or directed | Synonyms: steerable |
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| disagreeable | (adjective) not to your liking | - |
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| (adjective) unpleasant to interact with | - |
| (adjective) not agreeing with your tastes or expectations | Synonyms: unsympathetic |
| disavowable | (adjective) capable of being disavowed | - |
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| discalceate | (adjective) (used of certain religious orders) barefoot or wearing only sandals | Synonyms: discalced, unshod |
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| discernable | (adjective) perceptible by the senses or intellect | Synonyms: discernible |
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| discernible | (adjective) perceptible by the senses or intellect | Synonyms: discernable |
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| (adjective) capable of being seen or noticed | Synonyms: evident, observable |
| (adjective) capable of being perceived clearly | - |
| disclike | (adjective) having a flat circular shape | Synonyms: disc-shaped, discoid, discoidal, disk-shaped, disklike |
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| disconsolate | (adjective) sad beyond comforting; incapable of being consoled | Synonyms: inconsolable, unconsolable |
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| (adjective) causing dejection | Synonyms: blue, dark, dingy, dismal, drab, drear, dreary, gloomy, grim, sorry |
| discorporate | (adjective) not having a material body | Synonyms: bodiless, disembodied, unbodied, unembodied |
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| discoverable | (adjective) capable of being ascertained or found out | Synonyms: ascertainable |
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