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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.

Despite the danger it poses, many infected animals never become ill.

From Science Daily • Jun. 11, 2026

Craig Mather was teaching his musical theatre class when he received a call on Thursday from a director to say that their lead had fallen ill.

From BBC • Jun. 10, 2026

There’s no evidence that well-known women using social media and public appearances to sell their audiences on GenAI have any ill intent, or that they’re shills for AI companies.

From Salon • Jun. 10, 2026

Even if someone does become ill, it takes time for Ebola to progress from “dry” symptoms to highly contagious “wet” symptoms.

From The Wall Street Journal • Jun. 9, 2026

When her husband and daughter visit, she puts on a cheerful demeanor, even when she’s desperately ill.

From "At Last She Stood" by Erin Entrada Kelly




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