• synonyms


[uhn-soo-tuh-buh l]
See more synonyms for unsuitable on Thesaurus.com
  1. not suitable; inappropriate; unfitting; unbecoming.
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Origin of unsuitable

First recorded in 1580–90; un-1 + suitable
Related formsun·suit·a·bil·i·ty, un·suit·a·ble·ness, nounun·suit·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unsuitable

Contemporary Examples

Historical Examples

  • I speak, of course, in ignorance of the details, and they may be unsuitable on both sides.'

    Little Dorrit

    Charles Dickens

  • It was the point of view which was unsuitable, not the meaning which was absent!

    Cleo The Magnificent

    Louis Zangwill

  • We cannot use the cotton, as it is unsuitable for our hosiery yarns.

    Bremen Cotton Exchange

    Andreas Wilhelm Cramer

  • Now every melody is right when it has suitable harmony and rhythm, and wrong when unsuitable.



  • Young man, you have chosen an unsuitable place to cut your jokes!'

    Jack Hinton

    Charles James Lever

British Dictionary definitions for unsuitable


  1. not appropriate, suitable, or fit
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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

Word Origin and History for unsuitable


1590s, from un- (1) "not" + suitable. Related: Unsuitably; unsuitability.

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Online Etymology Dictionary, © 2010 Douglas Harper