Definitions

unsuitable

[uhn-soo-tuh-buhl] / ʌnˈsu tə bəl /

ADJECTIVE

not proper, inappropriate

Synonyms

STRONGEST

improper inadequate inadmissible incompatible incongruous ineligible irrelevant unacceptable unfit unsuited

WEAK

clashing disagreeable discordant discrepant disparate disproportionate dissident dissonant ill-suited inapposite inapt inconsistent infelicitous inharmonious interfering jarring malapropos out of character out of keeping out of place senseless unbecoming unbefitting uncalled-for undue unfitting unmatched unseasonable unseemly

Antonyms

STRONGEST

able acceptable appropriate compatible fitting harmonious qualified suitable

WEAK

proper

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.

Salty water could be preventing the recovery of one of the UK's rarest amphibians by making former breeding sites unsuitable for their survival, a study has concluded.

From BBC • May 31, 2026

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

Cryptocurrencies are fundamentally unsuitable for retirement accounts due to extreme volatility and the fact that they lack concrete underlying value.

From Los Angeles Times • Apr. 10, 2026

Hundreds of people turned up for the trial into the 2023 train collision that left 57 dead, leading to angry complaints from lawyers that the venue was "insultingly" unsuitable, and booing from family relatives.

From Barron's • Mar. 23, 2026

For William, burdened with secrets that involved the nation’s security, the treatment was wildly unsuitable.

From "The Woman All Spies Fear" by Amy Butler Greenfield

Vocabulary lists containing unsuitable

"The Bet" by Anton Chekhov

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Stuart Little

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Way Off: Synonyms for "Wrong"

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