What is the opposite of probable?

Need antonyms for probable? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts ▼▲ Opposite of likely to happen or be the case Opposite of worthy of being believed or accepted as true Opposite of likely to happen at a future date Opposite of able to be predicted or anticipated Opposite of having a valid reason Opposite of apparently true, but not necessarily Opposite of achievable or able to be attained Opposite of based on, or displaying, common sense … more ▼ ▲ Adjective ▲ Opposite of likely to happen or be the case improbable unlikely doubtful dubious questionable impossible inconceivable unreasonable not likely implausible unbelievable incredible far-fetched unplausible unimaginable unconvincing unreliable unforeseeable unthinkable unpromising unbelieveable unacceptable cock-and-bull untenable undependable remote difficult helpless illogical fabulous irrational increditable dishonest deceptive irresponsible unsound desperate disheartening pessimistic gloomy dismal unencouraging unpropitious downbeat bleak discouraging dark depressing dreary inauspicious hopeless inapt out of the question inconclusive unpersuasive uncompelling indecisive ineffective unimportant insignificant impotent weak untrustworthy beyond belief more ❯ Adjective ▲ Opposite of worthy of being believed or accepted as true far-fetched implausible incredible unbelievable unplausible preposterous inconceivable unconvincing fantastic doubtful unthinkable dubious absurd fanciful unimaginable ridiculous questionable fantastical flimsy unreasonable unrealistic weak impossible incredulous suspect uncompelling thin unconceivable fishy unsubstantial debatable farfetched puzzling tall reachy problematic unnatural contrived obscure elaborate hokey insubstantial overdone laboredUS labouredUK difficult to believe cock-and-bull beyond the bounds of possibility hard to swallow hard to take not likely scarcely credible hard to believe cock and bull unlikely improbable inappropriate untenable impractical beyond belief infeasible unpractical Adjective ▲ Opposite of likely to happen at a future date agreed concurred Adjective ▲ Opposite of able to be predicted or anticipated surprising unexpected unforeseen unlikely unpredictable improbable out of the blue perplexing astonishing aberrant uncommon rare unusual untypical abnormal uncharacteristic unfamiliar bizarre abrupt unanticipated anomalous odd strange extraordinary atypical startling peculiar aberrational unrepresentative aberrated stunning impulsive non-typical sudden anomalistic impetuous staggering unheralded unpredicted from left field Adjective ▲ Opposite of having a valid reason indefensible unjustifiable unreasonable arbitrary insupportable unsustainable untenable unwarranted capricious illegal illegitimate improbable inexcusable invalid prohibited unacceptable unlawful unlikely unsuitable wrong Adjective ▲ Opposite of apparently true, but not necessarily real actual concrete factual confirmed effective definite specific exact true indubitable absolute clear unquestionable categorical undeniable authentic truthful substantive genuine substantial tangible certain veritable precise attested hard verified indisputable clear-cut Adjective ▲ Opposite of achievable or able to be attained unattainable impossible impracticable inaccessible unfeasible unobtainable hopeless infeasible nonviable unavailable undoable unrealizable unviable unworkable improbable unlikely unprocurable unreachable unachieveable unreasonable out of reach unrealistic Adjective ▲ Opposite of based on, or displaying, common sense groundless baseless unjustified Unsupported unfounded unsubstantiated unwarranted illogical nonsensical unreasoned fallacious foundationless incoherent unjustifiable inconsequential questionable sham untrue bogus specious unrecognisedUK unrecognizedUS weak erroneous invalid unrealistic wrong illegitimate spurious untrustworthy false inconsequent misguided unreliable gratuitous imaginary nonrational unconvincing unsound causeless illusory uninformed unproven unreasonable irrational nonvalid uncorroborated unsupported ill-founded uncalled for uncalled-for without basis without cause without explanation without foundation without justification without reason not backed up senseless absurd implausible improbable insane preposterous silly ridiculous crazy fatuous asinine idiotic inane foolish obscure ludicrous stupid bizarre unsuitable fantastical daft brainless unintelligent more ❯ “Of course, the moment I got there it was clear that all my concerns were completely groundless.” Find more words! 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Sentences with the word probable Words that rhyme with probable What is the plural of probable? What is the adverb for probable? What is the adjective for probable? What is the noun for probable? Translations for probable Use our Antonym Finder Nearby Words probably probation probationary probationer probative probatory probability probabilities probabilistically probabilistic prob proatherogenic 8-letter Words Starting With p pr pro prob proba probab probabl