infirm

[in-furm] / ɪnˈfɜrm /

ADJECTIVE

sick, weak

Synonyms

STRONGEST

ailing anemic decrepit feeble frail ill insecure unstable

WEAK

anile debilitated delicate enfeebled failing faint faltering flimsy fragile halting irresolute laid low lame sensile shaky unsound unsubstantial vacillating wavering wobbly

Antonyms

STRONGEST

healthy sound strong

WEAK

firm hearty robust

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.

In early scenes, he has a small curved line denoting a chubby chin, which changes over time to straight lines on each cheek, narrowing his face when he is old and infirm.

From MarketWatch • Mar. 16, 2026

And the death of his elderly, infirm father, King Salman, could soon bring succession issues to the fore.

From The Wall Street Journal • Feb. 10, 2026

Staples literally got the sick and infirm to stand up.

From Salon • Jun. 17, 2025

Yurchenkove, like all the border villages, had only a few elderly or infirm civilians.

From BBC • May 28, 2024

Daily she grows more infirm, eating only enough to keep her soul from fleeing in the night.

From "Ophelia" by Lisa Klein

Vocabulary lists containing infirm

Negatives with "in"

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Things Fall Apart

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Feeling Faint: Synonyms for "Weak"

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