[ kwes-chuh-nuh-buhl ]

  1. of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.

  2. open to question or dispute; doubtful or uncertain: a statement of questionable accuracy.

  1. open to question as to being of the nature or value suggested: a questionable privilege.

Origin of questionable

First recorded in 1580–90; question + -able

Other words for questionable

Opposites for questionable

Other words from questionable

  • ques·tion·a·ble·ness, ques·tion·a·bil·i·ty, noun
  • ques·tion·a·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use questionable in a sentence

British Dictionary definitions for questionable


/ (ˈkwɛstʃənəbəl) /

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

  2. of disputable value or authority: a questionable text

Derived forms of questionable

  • questionableness or questionability, noun
  • questionably, adverb

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