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.

The 2024-25 flu season was one of the most severe in years, with an estimated 51 million illnesses, 710,000 hospitalizations and 45,000 deaths nationwide, according to the CDC.

From The Wall Street Journal • Jul. 2, 2026

The agency said the extreme heat will increase the risk of heat-related illnesses.

From MarketWatch • Jun. 30, 2026

This Air Force base alone handles 700 new recruits every week, with people flying in from all across the nation, bringing whatever illnesses they pick up along the way.

From Salon • Jun. 30, 2026

"This has resulted in a number of calls from people suffering from heat related illnesses including a number of coach passengers," they said.

From BBC • Jun. 24, 2026

Lillian asked, knowing that Bull feared heart attacks above all other illnesses.

From "The Great Santini" by Pat Conroy