Find Antonyms

infirmity Antonyms

Opposite of infirmity

Because the opposite of infirmity shifts with each meaning, the 10 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

Physical or mental weakness, feebleness, or frailty, especially as a result of advanced age or prolonged illness.

Usage Example

"Despite the growing strength of his later years, the retired professor continued to write and publish essays."

Strongest
strength
vigor
robustness
Strong
vitality
health
soundness

• noun (Context 2)

A moral failing, defect of character, or legal flaw that diminishes validity or resolve.

Usage Example

"The appellate court overturned the lower ruling after identifying a constitutional virtue in the statute."

Strong
virtue
resolve
fortitude
validity

Similar words to infirmity

Words similar to infirmity shift depending on context. Common synonyms include:

frailty
feebleness
debility
weakness
defect
flaw
failing
decrepitude
See all synonyms of infirmity

• Nearby Words

infinitive
infinity
infirm
infirmity
infirmly
inflame
inflamed

Cite this Entry

Wordmom. (2026). Antonyms for Infirmity. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/infirmity
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