unsuitable
Americanadjective
adjective
Other Word Forms
Etymology
Origin of unsuitable
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."
Vocabulary lists containing unsuitable
"The Bet" by Anton Chekhov
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Stuart Little
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Way Off: Synonyms for "Wrong"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
Tourists can face infectious diseases, accidents, injuries, violence, unsafe food or water, and other risks linked to poor planning or unsuitable travel choices.
From Science Daily • May 4, 2026
In response to a contract dispute, the Pentagon declared Anthropic a supply-chain risk unsuitable for military work, increasing the urgency of offering other models to servicemembers in classified settings.
From The Wall Street Journal • May 1, 2026
The United States told the WTO last December that it considers the principle "unsuitable for this era".
From Barron's • Mar. 20, 2026
She said a cooling system fitted in the mortuary was not working and was unsuitable anyway because of the size of the room.
From BBC • Feb. 19, 2026
The final result covered almost fifteen acres and was the largest earthen structure in the Western Hemisphere; though built out of unsuitable material in a floodplain, it has stood for a thousand years.
From "1491" by Charles C. Mann
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.