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Definitions

ill

[il] / ɪl /




Usage

What are other ways to say ill?

The adjective ill is more mild than evil or wicked, and it appears mainly in certain fixed expressions: ill will; ill-natured. Evil applies to that which violates or leads to the violation of moral law: evil practices. Wicked implies willful and determined doing of what is very wrong: a wicked plan. Bad is the broadest and simplest term: a bad man; bad habits. 

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.

A suspected outbreak of hantavirus, a rare but deadly disease that attacks the lungs, killed three people, and several others have become severely ill aboard a luxury cruise ship.

From Los Angeles Times • May 7, 2026

The deceased man's wife -- who left the ship to accompany his body to South Africa -- died there 15 days later after also falling ill, with hantavirus confirmed as the cause on May 4.

From Barron's • May 7, 2026

People ill with the Andes strain can have symptoms similar to flu - a fever, fatigue, muscle aches.

From BBC • May 7, 2026

Four babies were rushed to a Nashville, Tennessee, children’s hospital after they suddenly fell ill months apart.

From Salon • May 7, 2026

Struggling under piles of debt and in ill health, an aging Madison resolved to emancipate “his people.”

From "In the Shadow of Liberty" by Kenneth C. Davis