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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | worthless; unfounded |
| Synonyms: | bad, baseless, fallacious, false, ill-founded, illogical, inoperative, irrational, mad, not binding, not working, nugatory, null, null and void, reasonless, sophistic, unreasonable, unreasoned, unscientific, unsound, untrue, void, wrong |
| Antonyms: | sound, valid, worthwhile, worthy |
| Main Entry: | invalid |
| Part of Speech: | noun |
| Definition: | sick person |
| Synonyms: | consumptive, convalescent, incurable, patient, shut-in, sufferer |
| Main Entry: | bedridden |
| Part of Speech: | adjective |
| Definition: | sick in bed |
| Synonyms: | ailing, disabled, flat on one's back, ill, incapacitated, infirm, invalid, laid up, prostrate |
| Main Entry: | defunct |
| Part of Speech: | adjective |
| Definition: | extinct, not functioning |
| Synonyms: | asleep, bygone, cold, dead, deceased, departed, done for, down the drain, exanimate, expired, gone, had it, inanimate, inoperative, invalid, kaput, late, lifeless, lost, nonexistent, obsolete, out of commission, vanished |
| Antonyms: | alive, existent, existing, functioning, live, operating, operative, valid, working |
| Main Entry: | erroneous |
| Part of Speech: | adjective |
| Definition: | wrong, incorrect |
| Synonyms: | all off, all wet, amiss, askew, awry, defective, fallacious, false, faulty, flawed, inaccurate, inexact, invalid, misguided, mistaken, off, specious, spurious, unfounded, unsound, untrue, way off, wrong number |
| Antonyms: | correct, right, true, valid |
| Main Entry: | fallacious |
| Part of Speech: | adjective |
| Definition: | false, wrong |
| Synonyms: | beguiling, deceiving, deceptive, deluding, delusive, delusory, erroneous, fictitious, fishy, fraudulent, illogical, illusory, incorrect, invalid, irrational, mad, misleading, mistaken, off*, phony, reasonless, sophistic, sophistical, spurious, unfounded, ungrounded, unreal, unreasonable, unreasoned, unsound, untrue, way off |
| Notes: | fallacious means intended to deceive; fallible means liable to make a mistake or to be inaccurate or erroneous; false means not in accordance with the fact or reality or actuality, or deliberately deceptive, or not genuine or real |
| Antonyms: | correct, real, true, truthful |
* = informal/non-formal usage
| Main Entry: | false |
| Part of Speech: | adjective |
| Definition: | wrong, made up |
| Synonyms: | apocryphal, beguiling, bogus, casuistic, concocted, contrary to fact, cooked-up, counterfactual, deceitful, deceiving, delusive, dishonest, distorted, erroneous, ersatz*, fake, fallacious, fanciful, faulty, fictitious, fishy, fraudulent, illusive, imaginary, improper, inaccurate, incorrect, inexact, invalid, lying, mendacious, misleading, misrepresentative, mistaken, off the mark, phony, sham, sophistical, specious, spurious, trumped up, unfounded, unreal, unsound, untrue, untruthful |
| Notes: | fallacious means intended to deceive; fallible means liable to make a mistake or to be inaccurate or erroneous; false means not in accordance with the fact or reality or actuality, or deliberately deceptive, or not genuine or real |
| Antonyms: | accurate, actual, correct, factual, genuine, known, precise, real, right, substantiated, true, valid |
* = informal/non-formal usage
| Main Entry: | faulty |
| Part of Speech: | adjective |
| Definition: | not working; incorrect |
| Synonyms: | adulterated, amiss, awry, bad, below par, blamable, blemished, botched, broken, cracked, damaged, debased, defective, deficient, distorted, erroneous, fallacious, fallible, false, flawed, frail, impaired, imperfect, imprecise, inaccurate, inadequate, incomplete, inexact, injured, insufficient, invalid, lame, leaky, lemon, maimed, malformed, malfunctioning, marred, out of order, rank, sick, tainted, unfit, unreliable, unretentive, unsound, warped, weak, wrong |
| Antonyms: | accurate, correct, perfect, sound, strong, working |
| Main Entry: | helpless |
| Part of Speech: | adjective |
| Definition: | incapable, incompetent; vulnerable |
| Synonyms: | abandoned, basket-case, debilitated, defenseless, dependent, destitute, disabled, exposed, feeble, forlorn, forsaken, friendless, handcuffed, impotent, inefficient, inexpert, infirm, invalid, over a barrel, paralyzed, pinned, powerless, prostrate, shiftless, tapped, tapped out, unable, unfit, unprotected, up creek without paddle, weak, with hands tied |
| Antonyms: | able, capable, competent, enterprising, independent, resourceful, skilled, strong |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
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Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
