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Definitions

unfit

[uhn-fit] / ʌnˈfɪt /
ADJECTIVE
not appropriate or suited
Synonyms
STRONGEST
ill-equipped inadequate inappropriate unhealthy unlikely unsuitable unsuited useless
STRONG
debilitated down dragging mistaken
WEAK
below par can't make the grade decrepit discordant feeble flimsy ill-adapted ill-suited improper inapplicable incompatible incongruous incorrect ineffective inexpedient infelicitous inharmonious laid low not fit out of element out of place out of shape poorly rocky unbecoming uncongenial uncool unmeet unpromising valueless
Antonyms
STRONGEST
appropriate proper suitable
WEAK
able fit qualified willing
ADJECTIVE
not ready
Synonyms
STRONGEST
ill-equipped impotent inadequate incapable ineligible unable unprepared unqualified useless
STRONG
blundering bungling debilitated disqualified incapacitated unfitted
WEAK
amateur awkward bush league butter-fingered clumsy feeble heavy-handed incompetent ineffective inefficient inept inexperienced inexpert maladjusted maladroit no good not cut out for not equal to not up to unapt unhandy unpracticed unproficient unskilled unskillful untrained weak
Antonyms
WEAK
appropriate fit ready

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.

A planet may have water and still be chemically unfit for life from the very beginning.

From Science Daily • Apr. 6, 2026

Jeffries' lawyers argue that he is suffering with dementia and late onset of Alzheimer's disease and is unfit to face trial alongside his partner and their alleged middleman in October.

From BBC • Mar. 28, 2026

Judges have rejected arguments that the 80-year-old, who was arrested in March last year and transferred to the Netherlands the same day, was unfit to stand trial.

From Barron's • Feb. 14, 2026

Infantry units are full of older men unfit for arduous combat missions.

From The Wall Street Journal • Jan. 30, 2026

Was he not safe at the manor as she thought but somewhere unknown and unsafe and unfit?

From "The Midwife's Apprentice" by Karen Cushman

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