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illnesses

NOUN

disease; bad health

Synonyms

STRONGEST

ailment breakdown collapse disability disorder disturbance flu ill health malady relapse seizure sickness syndrome virus

STRONG

affliction attack bug complaint confinement convalescence dose fit indisposition infirmity malaise prostration

WEAK

ailing diseasedness failing health poor health unhealth what's going around

Antonyms

STRONGEST

health order

STRONG

aid good health healthiness

WEAK

well-being wellness

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.

"People get what we call malaise - achy in the muscles and the joints, and eventually developing some vomiting, abdominal pain, diarrhoea," which he tells the BBC is "true for a lot of illnesses".

From BBC • Jun. 1, 2026

In rare circumstances, Salmonella can result in severe illnesses such as arterial infections, endocarditis and arthritis.

From Los Angeles Times • May 27, 2026

My partner recently had the same series of illnesses and we rushed to the hospital in an ambulance; a few hours difference and his outcome might have been as dire.

From MarketWatch • May 27, 2026

Cancer is one of the leading causes of disease and death in cats, yet scientists have historically known very little about the genetic changes driving these illnesses.

From Science Daily • May 24, 2026

Unlike illnesses such as tuberculosis or flu, it can be difficult to hide an advanced case of Hansen’s disease.

From "At Last She Stood" by Erin Entrada Kelly