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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | definite, final |
| Synonyms: | absolute, all out, clear, clinching, cogent, compelling, convincing, deciding, decisive, demonstrative, determinant, determinative, flat out, incontrovertible, indisputable, irrefragable, irrefrangible, irrefutable, irrevocable, litmus test, precise, resolving, revealing, settling, straight out, telling, ultimate, unambiguous, unanswerable, unarguable, unconditional, undeniable, unmistakable, unquestionable, what you see is what you get |
| Antonyms: | inconclusive, indefinite |
| Main Entry: | immune |
| Part of Speech: | adjective |
| Definition: | invulnerable |
| Synonyms: | allowed, clear, exempt, favored, free, hardened to, insusceptible, irresponsible, licensed, not affected, not liable, not subject, privileged, protected, resistant, safe, unaffected, unanswerable, unliable, unsusceptible |
| Antonyms: | susceptible, unguarded, unprotected, vulnerable |
| Main Entry: | impossible |
| Part of Speech: | adjective |
| Definition: | intolerable, ungovernable |
| Synonyms: | absurd, egregious, hopeless, improper, incongruous, ludicrous, objectionable, offensive, outrageous, preposterous, unacceptable, unanswerable, undesirable, unreasonable, unsuitable |
| Antonyms: | behaving, good, governable, manageable, tolerable |
| Main Entry: | irrefutable |
| Part of Speech: | adjective |
| Definition: | beyond question |
| Synonyms: | accurate, apodictic, can bet on it, certain, double-checked, evident, final, inarguable, incontestable, incontrovertible, indisputable, indubitable, invincible, ironclad, irrebuttable, irrefragable, irresistible, nof ifs ands or buts, obvious, odds-on, positive, proven, set, sure, unanswerable, unassailable, undeniable, unimpeachable, unquestionable |
| Antonyms: | doubtful, dubious, questionable, refutable, uncertain |
| Main Entry: | irresponsible |
| Part of Speech: | adjective |
| Definition: | careless, reckless |
| Synonyms: | capricious, carefree, devil-may-care, feckless, fickle, flighty, fly-by-night, giddy, harebrained, ill-considered, immature, immoral, incautious, lax, loose*, no-account, rash, scatterbrained, shiftless, thoughtless, unaccountable, unanswerable, uncareful, undependable, unpredictable, unreliable, unstable, untrustworthy, wild |
| Antonyms: | accountable, careful, liable, reliable, responsible, trustworthy |
* = informal/non-formal usage
| Main Entry: | undeniable |
| Part of Speech: | adjective |
| Definition: | definite, proven |
| Synonyms: | actual, beyond doubt, beyond question, binding, certain, clear, compulsory, evident, for sure, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefutable, manifest, necessary, no ifs and or buts, obligatory, obvious, open and shut, patent, positive, real, sound, sure, sure thing, true, unanswerable, unassailable, undoubted, unquestionable |
| Antonyms: | contestable, disputable, doubted, indefinite, unproven |
| Main Entry: | valid |
| Part of Speech: | adjective |
| Definition: | right, genuine |
| Synonyms: | accurate, attested, authentic, authoritative, binding, bona fide, cogent, compelling, conclusive, confirmed, convincing, credible, determinative, efficacious, efficient, good, in force, irrefutable, just, kosher*, lawful, legal, legit, legitimate, logical, official, original, persuasive, potent, powerful, proven, pure, solid, sound, stringent, strong, substantial, telling, tested, true, trustworthy, ultimate, unadulterated, unanswerable, uncorrupted, weighty, well-founded, well-grounded |
| Antonyms: | invalid, unacceptable, unreal, unsound, wrong |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
