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Definition of infirm

infirm

/ɪnˈfɜːrm/
in · firm
Adverb:infirmly
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infirm Lexical Profile

infirm Game Scores & Validity

• adjective

1

Not physically or mentally strong, especially through advanced age or chronic illness.

Example

"The community center provides home delivery services for elderly and infirm residents."

2

Irresolute, weak, or wavering in purpose, judgment, or legal validity.

Example

"Infirm of purpose, the committee delayed making a final decision on the reform proposal."

Synonyms
View all synonyms for infirm
Antonyms
View all antonyms for infirm

Word Nuance & Usage

Often used as a plural nominalized adjective with the definite article ('the infirm') to refer collectively to people who are physically weak or chronically ill.

• Rhymes for infirm

• Nearby Words

infinitesimally
infinitive
infinity
infirm
infirmary
infirmity
infirmly

Word Origin & Etymology

Borrowed in Middle English from Old French 'infirme' and directly from Latin 'infirmus' ('not strong, weak, feeble'), formed from the privative prefix 'in-' ('not') and 'firmus' ('strong, stable').

Cite this Entry

Wordmom. (2026). Definition of Infirm. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/infirm
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