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Synonyms

questionable

American  
[kwes-chuh-nuh-buhl] / ˈkwɛs tʃə nə bəl /

adjective

  1. of doubtful propriety, honesty, morality, respectability, etc..

    questionable activities; in questionable taste.

    Antonyms:
    certain
  2. open to question or dispute; doubtful or uncertain.

    a statement of questionable accuracy.

    Synonyms:
    dubious, dubitable, controvertible, disputable, debatable
  3. open to question as to being of the nature or value suggested.

    a questionable privilege.


questionable British  
/ ˈkwɛstʃənəbəl /

adjective

  1. (esp of a person's morality or honesty) admitting of some doubt; dubious

  2. of disputable value or authority

    a questionable text

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of questionable

First recorded in 1580–90; question + -able

Explanation

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. You might say that it's questionable whether you'll reach your goal of getting straight A's in school, or secretly believe that everything your history teacher says is slightly questionable. 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 interrogated," from the Latin root word quaestionem, "a seeking, inquiry, questioning, or examination."

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Vocabulary lists containing questionable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But he and Talley aren’t the only former Collins employees with questionable histories.

From Slate Aug. 27, 2026

Responding to a glut of what it saw as low-quality, AI-generated content from aspiring thought leaders, LinkedIn recently introduced a “seems like AI slop” tag users can click for posts that they find questionable.

From The Wall Street Journal Aug. 25, 2026

Pushing away your fastest-growing customer group is a questionable business move.

From MarketWatch Aug. 25, 2026

Before cutting his hair, Haaland joked around by showing off some images of his previous hairstyles during his career, and some questionable ideas of how his new hair should look.

From BBC Aug. 23, 2026

Mom usually picked a movie from a long time ago, when people made questionable fashion choices.

From "Caterpillar Summer" by Gillian McDunn

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