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Showing results for unsuitable. Search instead for unsuitable fit.
Synonyms

unsuitable

American  
[uhn-soo-tuh-buhl] / ʌnˈsu tə bəl /

adjective

  1. not suitable; inappropriate; unfitting; unbecoming.


unsuitable British  
/ ʌnˈsuːtəbəl, ʌnˈsjuːt- /

adjective

  1. not appropriate, suitable, or fit

"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

Etymology

Origin of unsuitable

First recorded in 1580–90; un- 1 + suitable

Explanation

Something that's unsuitable doesn't work well or is out of place. A kitchen knife is unsuitable for sawing firewood. You can use the adjective unsuitable to describe something that isn't well suited for a use: flip flops are unsuitable shoes to wear in a blizzard. It's also a good word for something that's disappointing or undesirable: "No, that guy in the clown suit would be a completely unsuitable boyfriend for me." At the root of unsuitable is the meaning of suit, "be agreeable or convenient," that's thought to come from "provide a suit of clothes."

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Vocabulary lists containing unsuitable

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.

See Examples For:

Millions of books were eventually collected, but many were unsuitable for the purpose.

From The Wall Street Journal ● Oct. 6, 2026

She added many of the diversion routes are unsuitable for large vehicles and volumes of traffic.

From BBC ● Sep. 22, 2026

Although many tool compounds are unsuitable for use as medicines because they may affect unintended targets or cause toxicity, they are still highly valuable for investigating what a protein does.

From Science Daily ● Aug. 3, 2026

But agents say some renters wrongly believe permission to have a pet is guaranteed, and landlords say some homes remain unsuitable for multiple pets or large dogs.

From BBC ● Jul. 26, 2026

Then she has the nerve to tell me that my plain taffeta dress is unsuitable for the Tropicana.

From "Dreaming in Cuban" by Cristina García

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