May 30, 2026 · 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.

something that is questionable may not be true or accurate, or could be doubted:

In either case, you're highly doubtful. You can even describe a person as questionable, if he or she doesn't strike you as completely honest. The original meaning of the word was "that may be …

Find 83 different ways to say QUESTIONABLE, along with antonyms, related words, and example sentences at Thesaurus.com.

Definition of questionable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you say that something is questionable, you mean that it is not completely honest, reasonable, or acceptable.

Find 3,166 synonyms for questionable and other similar words that you can use instead based on 10 separate contexts from our thesaurus.

There are nine meanings listed in OED's entry for the adjective questionable, five of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Define questionable. questionable synonyms, questionable pronunciation, questionable translation, English dictionary definition of questionable. adj. 1. a. Open to doubt or challenge; problematic. b. …

Something that's questionable is uncertain or hard to believe. If a politician says things you doubt are true, you might describe his words as questionable.