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Synonyms

unwell

American  
[uhn-wel] / ʌnˈwɛl /

adjective

  1. not well; ailing; ill.

  2. Older Use. menstruating.


unwell British  
/ ʌnˈwɛl /

adjective

  1. (postpositive) not well; ill

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of unwell

late Middle English word dating back to 1400–50; see origin at un- 1, well 1

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.

See Examples For:

"She wasn't unwell - there were no signs of this," Lorna added.

From BBC Aug. 31, 2026

Bolleau went home “devastated, unwell physically and mentally, and forever changed.”

From Los Angeles Times Aug. 24, 2026

"We're not saying people are suddenly going to become unwell when we cross a certain threshold," he said.

From Science Daily Aug. 15, 2026

A foot injury severely hampered her pre-season training before she spent two and a half months off court with a post-viral illness after initially falling unwell in early February.

From BBC Aug. 3, 2026

But now it was humid out, his childhood asthma acting up, and Marius was feeling unhappy and unwell when I came roller-skating by.

From "Middlesex: A Novel" by Jeffrey Eugenides

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