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Synonyms

undesirable

American  
[uhn-di-zahyuhr-uh-buhl] / ˌʌn dɪˈzaɪər ə bəl /

adjective

  1. not desirable or attractive; objectionable.

    undesirable qualities.


noun

undesirables plural
  1. a person or thing considered undesirable.

    a collection of malcontents and undesirables.

undesirable British  
/ ˌʌndɪˈzaɪərəbəl /

adjective

  1. not desirable or pleasant; objectionable

"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

noun

  1. a person or thing that is considered undesirable

"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

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of undesirable

First recorded in 1660–70; un- 1 + desirable

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.

There was political consensus that a return to checkpoints on the border was undesirable.

From BBC • Jun. 23, 2026

"All affected individuals have been declared undesirable persons and are consequently prohibited from re-entering South Africa for a period of five years," the South African government said in a statement Thursday.

From Barron's • Jun. 11, 2026

They contended that through mental exercises, people could alter the shapes of their own brains, cultivating desirable qualities and suppressing undesirable ones.

From The Wall Street Journal • Apr. 29, 2026

If those numbers are borne out in the real world, most people on GLP-1s may have some kind of undesirable GI effect from them.

From Slate • Mar. 22, 2026

But he was formally advised that he would not be permitted to speak and, moreover, that he could consider himself officially barred forever from France as “an undesirable person.”

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey

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