Thesaurus

dubious

adjective

Synonyms and Antonyms of dubious

1 giving good reason for being doubted, questioned, or challenged

any letter bearing the signature of Geronimo would be of dubious authenticity, to say the least

Synonyms of dubious

debatable, disputable, dodgy [chiefly British], doubtable, doubtful, dubitable, equivocal, fishy, problematic (also problematical), queer, questionable, shady, shaky, suspect, suspicious

Words Related to dubious

alleged, so-called, supposed

ambiguous, open, unclear

uncertain, undecided, undetermined

far-fetched, flimsy, improbable, unlikely, weak

Near Antonyms of dubious

decisive, definitive

clear, obvious, open-and-shut, positive

Antonyms of dubious

certain, hands-down, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unproblematic, unquestionable

2 slow to begin or proceed with a course of action because of doubts or uncertainty

Iʼm dubious about our plan to go hang gliding without having had any training

Synonyms of dubious

cagey (also cagy), disinclined, hesitant, indisposed, loath (also loth), reluctant, reticent

Words Related to dubious

uneager, unenthusiastic

averse, unwilling

ambivalent, conflicted, doubtful, faltering, halting, indecisive, infirm, irresolute, questioning, skeptical, uncertain, undecided, unsure, vacillating, wobbly (also wabbly)

fainthearted, shy, timid

Near Antonyms of dubious

eager, enthusiastic, glad, happy, keen

certain, decided, determined, resolute, sure, unquestioning

Antonyms of dubious

disposed, inclined

3 not likely to be true or to occur

made the dubious claim of being of royal blood

Synonyms of dubious

doubtful, far-fetched, flimsy, improbable, questionable, unapt, unlikely

Words Related to dubious

implausible, impossible, inconceivable, incredible, unbelievable, unimaginable, unthinkable

absurd, bizarre, crazy, fantastic (also fantastical), foolish, insane, nonsensical, odd, outlandish, preposterous, ridiculous, unreal, wild

outside, remote, slight

Near Antonyms of dubious

believable, conceivable, credible, earthly, imaginable, plausible

possible, potential

Antonyms of dubious

likely, probable

4 not feeling sure about the truth, wisdom, or trustworthiness of someone or something

dubious about a diet that claims I can eat all I want and still lose weight

Synonyms of dubious

distrustful, doubtful, hinky [slang], mistrustful, skeptical, suspicious, trustless, uncertain, unconvinced, undecided, unsettled, unsure

Words Related to dubious

ambivalent, conflicted, equivocal

diffident, insecure

halting, hesitant, indecisive, irresolute, vacillating, wavering

Phrases Synonymous with dubious

Near Antonyms of dubious

assured, confident, sanguine, self-assured

decisive, determined, resolute

Antonyms of dubious

certain, convinced, positive, sure

Synonym Discussion of dubious

doubtful, dubious, problematic, questionable mean not affording assurance of the worth, soundness, or certainty of something. doubtful implies little more than a lack of conviction or certainty.

- doubtful about whether I said the right thing

dubious stresses suspicion, mistrust, or hesitation.

- dubious about the practicality of the scheme

problematic applies especially to things whose existence, meaning, fulfillment, or realization is highly uncertain.

- whether the project will ever be finished is problematic

questionable may imply no more than the existence of doubt but usually suggests that the suspicions are well-grounded.

- a man of questionable honesty

Learn More about dubious

See words that rhyme with dubious Dictionary: Definition of dubious Spanish Central: Translation of dubious Nglish: Translation of dubious for Spanish speakers Britannica English: Translation of dubious for Arabic speakers

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