| Main Entry: | improbable |
| Part of Speech: | adjective |
| Definition: | not likely |
Synonyms: |
doubtful, dubious, fanciful, far-fetched, flimsy*, hundred-to-one, iffy, implausible, inconceivable, not expected, outside chance, questionable, rare, slim, slim and none, unbelievable, uncertain, unconvincing, unheard of, unimaginable, unlikely, unsubstantial, weak |
Antonyms: |
believable, likely, ostensible, plausible, possible, probable, tenable |
| Main Entry: | dubious |
| Part of Speech: | adjective |
| Definition: | doubtful |
Synonyms: |
arguable, chancy, debatable, diffident, disputable, dubitable, equivocal, far-fetched, fishy, fly-by-night, hesitant, iffy, improbable, indecisive, moot, mootable, open, perplexed, problematic, questionable, reluctant, shady, skeptical, suspect, suspicious, touch and go, trustless, unassured, uncertain, unclear, unconvinced, undecided, undependable, unlikely, unreliable, unsure, untrustworthy, untrusty, wavering |
| Notes: | a person is capable of doubting, whereas a thing is dubitable; dubious, unlike doubtful, carries the connotation of suspicion |
Antonyms: |
certain, definite, doubtless, positive, reliable, sure, trustworthy, trusty, undoubtful |
| Main Entry: | far-fetched |
| Part of Speech: | adjective |
| Definition: | hard to believe |
Synonyms: |
bizarre, doubtful, dubious, eccentric, fantastic, fishy, forced, hard to swallow, illogical, implausible, improbable, incoherent, inconsequential, incredible, labored, preposterous, queer, recondite, strained, strange, suspicious, unbelievable, unconvincing, unlikely, unnatural, unrealistic |
Antonyms: |
believable, natural, plausible, realistic |
| Main Entry: | fishy |
| Part of Speech: | adjective |
| Definition: | doubtful, suspicious |
Synonyms: |
ambiguous, doubtable, dubious, dubitable, equivocal, far-fetched, funny, implausible, improbable, odd, problematic, queer, questionable, shady, suspect, uncertain, unlikely |
Antonyms: |
aboveboard, honest, likely, probable, real, truthful, unquestionable, unsuspicious |
| Main Entry: | flimsy |
| Part of Speech: | adjective |
| Definition: | unconvincing, implausible |
Synonyms: |
assailable, baseless, contemptible, controvertible, fallacious, false, feeble, frivolous, groundless, illogical, improbable, inadequate, inane, inconceivable, incredible, inept, lame, poor, puerile, superficial, thin, transparent, trifling, trivial, unbelievable, ungrounded, unpersuasive, unreasonable, unsatisfactory, unsubstantial, weak, weakly, wishful |
Antonyms: |
convincing, plausible, reasonable, serious, strong |
| Main Entry: | implausible |
| Part of Speech: | adjective |
| Definition: | not likely |
Synonyms: |
doubtful, dubious, far out, farfetched, fishy, flimsy, for the birds, full of holes, impossible, improbable, inconceivable, incredible, obscure, problematic, puzzling, reachy, suspect, thin*, too much*, unbelievable, unconvincing, unreasonable, unsubstantial, weak, won't hold water, won't wash |
Antonyms: |
believable, likely, plausible, possibly, probably, reasonable |
| Main Entry: | impractical/impracticable |
| Part of Speech: | adjective |
| Definition: | unrealistic |
Synonyms: |
abstract, absurd, chimerical, idealistic, illogical, impossible, impracticable, improbable, inapplicable, inefficacious, infeasible, inoperable, irrealizable, ivory-tower, no-go, nonfunctional, nonviable, not a prayer, otherworldly, out of the question, quixotic, romantic, speculative, starry-eyed, theoretical, unattainable, unbusinesslike, unfeasible, unreal, unserviceable, unusable, unwise, unworkable, useless, visionary, wild, won't fly |
Antonyms: |
practicable, practical, probable, realistic, reasonable, tenable, viable |
| Main Entry: | inconceivable |
| Part of Speech: | adjective |
| Definition: | beyond reason, belief |
Synonyms: |
extraordinary, fantastic, imcomprehensible, implausible, impossible, improbable, incogitable, incredible, insupposable, mind-boggling, phony, rare, reachy, staggering, strange, thin*, unbelievable, unconvincing, unheard-of, unimaginable, unknowable, unlikely, unsubstantial, unthinkable, weak*, won't fly, won't wash |
Antonyms: |
believable, conceivable, fathomable, imaginable, reasonable |
| Main Entry: | incredible |
| Part of Speech: | adjective |
| Definition: | beyond belief |
Synonyms: |
absurd, far-fetched, fishy, flimsy*, implausible, impossible, improbable, incogitable, inconceivable, insupposable, out of the question, outlandish, phony, preposterous, questionable, ridiculous, rings phony, suspect, thin*, unbelievable, unconvincing, unimaginable, unsubstantial, untenable, unthinkable |
Antonyms: |
believable, credible, plausible, possible, realistic, tenable |
| Main Entry: | legendary |
| Part of Speech: | adjective |
| Definition: | fictitious but well known |
Synonyms: |
allegorical, apocryphal, created, customary, doubtful, dubious, fabled, fabricated, fabulous, fanciful, figmental, handed-down, imaginary, imaginative, improbable, invented, mythical, mythological, related, romantic, storied, told, traditional, unhistoric, unhistorical, unreal, unverifiable |
Antonyms: |
factual, real, true |