INFIRMITY Synonyms: 107 Similar and Opposite Words

infirmity

noun

in-ˈfər-mə-tē

Definition of infirmity

as in disease

an abnormal state that disrupts a plant's or animal's normal bodily functioning an 18th-century quack who specialized in those mysterious infirmities that are known only to the idle rich

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in weakness

the quality or state of lacking physical strength or vigor a period of infirmity left the athlete completely out of shape

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of infirmity Jesus’ understanding of spiritual reality – the reality of each of us, as created and maintained by God – led to the woman’s immediate freedom from infirmity. — Alistair Budd, Christian Science Monitor, 21 Jan. 2026 Their income is limited, because of age or infirmity. — Dan Horn, Cincinnati Enquirer, 10 Nov. 2025 As if my sudden turn to sedentariness were the result of indolence, not infirmity. — Lucinda Rosenfeld, New Yorker, 25 Oct. 2025 Humor savors an infirmity — a foible, a failing, a venality, a flaw. — Big Think, 23 Sep. 2025 See All Example Sentences for infirmity

Recent Examples of Synonyms for infirmity

Noun

New findings by a team of researchers from the US and Australia have complicated an ongoing debate over whether a total joint arthroplasty may increase the risk of Alzheimer’s disease.

— Mike McRae August 31, New Atlas, 1 Sep. 2026
As the disease progresses, people can develop a stiff neck, seizures and coma.

— Anthony Thompson, USA Today, 1 Sep. 2026

Definition of disease

Noun

Researchers point out that this ability could make maritime simulations more realistic while helping identify weaknesses in operational plans.

— Bojan Stojkovski, Interesting Engineering, 30 Aug. 2026
Summary Several investor rights firms are threatening class actions against into Suja Life after its stock plummeted following disappointing Q2 earnings and reduced guidance, attributed to grocery channel weakness.

— Pamela N. Danziger, Forbes.com, 29 Aug. 2026

Definition of weakness

Noun

Fewer than 10 people typically die of the illness each year, but nearly everyone who contracts it dies, according to the CDC.

— Charlotte Observer, Charlotte Observer, 29 Aug. 2026
If a parent has an illness so contagious that the hospital can’t adequately protect other patients from it, such as tuberculosis, the parent and child would probably be put in an isolation room with special airflow to contain germs.

— Brenda Goodman, CNN Money, 28 Aug. 2026

Definition of illness

Noun

As Kasubhai observed, despite its legal feebleness, Kennedy’s declaration and its explicit threat has had a concrete impact on the provision of gender-affirming services to American youths.

— Business Columnist, Los Angeles Times, 23 Apr. 2026
Signs of disease include warts on legs, crusty or swollen eyes, feebleness, a ruffled appearance, difficulty breathing, nasal discharge, and diarrhea.

— Brandee Gruener, Southern Living, 5 Mar. 2026

Definition of feebleness

Noun

All the police will find is a crowd sitting in silent vigil and a bottle of olive oil for anointing the ill.

— Audrey Dutton, ProPublica, 25 Aug. 2026
Alex Pantling/Getty Images What is clear is that no one thinks the changes enacted in either the Championship or League One are a resolution to the EFL’s marked financial ills.

— Chris Weatherspoon, New York Times, 14 Aug. 2026

Definition of ill

Noun

In recent years, white supremacists have embraced the concept of lactose intolerance as a distinguishing debility of nonwhite people.

— Hilary Smith, The Conversation, 25 Aug. 2026
And, when pets suffered from cancer or heart failure or debility, conversations about what to do next were emotional but often straightforward.

— Sunita Puri, New Yorker, 6 June 2026

Definition of debility

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infirmities

infirmity

infix

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“Infirmity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infirmity. Accessed 2 Sep. 2026.

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Synonyms of infirmity

noun

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