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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.

We were only legally able to limit the list as a result of Ms. Roth’s office raising whether some locations might be unsuitable.

From The Wall Street Journal • Mar. 20, 2026

Horta said she never was told of the attacks, which made Maximus unsuitable for public adoption, and he was placed on the city’s New Hope list, which is accessible to registered nonprofit rescues.

From Los Angeles Times • Feb. 26, 2026

It is understood to be in urgent need of redevelopment as it is considered by diplomats to be unsuitable for modern needs .

From BBC • Jan. 12, 2026

Some examples of the latter include unsuitable investments, failure to disclose important information and overconcentration of investments.

From MarketWatch • Jan. 5, 2026

“Oh stop at once,” she murmured, deep in some unsuitable dream.

From "Secrets at Sea" by Richard Peck

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.