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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.

Appetite may decrease, oral health can worsen, chronic illnesses become more common and many older people take medicines that affect how nutrients are absorbed, used or cleared from the body.

From Science Daily • Jun. 6, 2026

Mounting piles of garbage, stagnant water and a crumbling health system fueled outbreaks of mosquito-borne illnesses, further scaring away tourists.

From The Wall Street Journal • May 27, 2026

In Wetherby, Martin House Children's Hospice provides palliative care and respite for children and young people who have serious illnesses.

From BBC • 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

The clinical symptoms of the disease served as a reminder of the fact that Ebola is related to certain kinds of flu-like illnesses seen in human children.

From "The Hot Zone" by Richard Preston