Dictionary.com
Thesaurus.com
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.

Loketv already has a sequel in the works: “My Undesirable Friends: Part II — Exile.”

From Los Angeles Times • Mar. 10, 2026

Du’s ruling in August 2021 was the first of its kind since Congress made it a crime almost a century ago to return to the U.S. after deportation under the Undesirable Aliens Act of 1929.

From Washington Times • May 22, 2023

But before the decade’s end, South Carolina Sen. Coleman Livingston Blease would orchestrate a new deal with employers that led to the Undesirable Aliens Act of 1929.

From Seattle Times • Jan. 9, 2023

Undesirable products like metabolic wastes, urea, uric acid, and certain drugs, are excreted by tubular secretion.

From Textbooks • Jun. 9, 2022

Newborn, preschool children, and music: Undesirable consequences of thoughtless neglect.

From "Music and the Child" by Natalie Sarrazin

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "undesirable" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com