[uhn-di-zahyuh r-uh-buh l]
See more synonyms for undesirable on Thesaurus.com
  1. a person or thing considered undesirable: a collection of malcontents and undesirables.

Origin of undesirable

First recorded in 1660–70; un-1 + desirable
Related formsun·de·sir·a·bil·i·ty, un·de·sir·a·ble·ness, nounun·de·sir·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for undesirable

Contemporary Examples of undesirable

Historical Examples of undesirable

  • A damp cellar has always been considered to be undesirable, but just why nobody knows.

    Rural Hygiene

    Henry N. Ogden

  • The roof of the spring-chamber may be of plank, but this is temporary and undesirable.

    Rural Hygiene

    Henry N. Ogden

  • The search for homes carried them into the most undesirable sections.

  • How to protect your emotional nature from undesirable vibrations.

    The Human Aura

    Swami Panchadasi

  • I have defied her from the first and now I am rated as an undesirable boarder.

British Dictionary definitions for undesirable


  1. not desirable or pleasant; objectionable
  1. a person or thing that is considered undesirable
Derived Formsundesirability or undesirableness, nounundesirably, 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

Word Origin and History for undesirable

1660s, "not to be desired, objectionable," from un- (1) "not" + desirable. The noun meaning "undesirable person or thing" is first attested 1883. Undesired "not asked or invited" is recorded from late 15c.

Online Etymology Dictionary, © 2010 Douglas Harper