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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.

The author also makes quite a few errors and questionable assertions.

From The Wall Street Journal • May 22, 2026

"They'd love to humiliate the Castros and get one of the original revolutionaries from 1959 behind bars. But the strategic value of that is questionable."

From BBC • May 21, 2026

Offering a layup to politics writers, Drake briefly wonders if the ire he’s earned through decades of digs and questionable interpolations of other artists’ songs is actually antisemitism.

From Salon • May 21, 2026

The ability of riskier borrowers to bear higher rates and an economic slowdown is questionable.

From MarketWatch • May 20, 2026

Deep in the archives of the Paris police is Picasso’s file: his friends, his questionable associations, his political leanings.

From "The Mona Lisa Vanishes" by Nicholas Day

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