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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 had not been unwell with either, only discovering she had contracted both through retrospective tests.

From BBC ● Oct. 16, 2026

It revealed that he first started feeling unwell in DR Congo on 15 September - and showed how several opportunities to detect the infection were missed, including during several visits to Congolese medical facilities.

From BBC ● Oct. 14, 2026

After suffering seizures and feeling very unwell from the chemotherapy, Jake opted out of continuing treatment.

From BBC ● Oct. 11, 2026

Filmmaker and professor Roland Palencia confirmed the actor’s death on social media, writing that Kearns had died Monday evening after feeling unwell and calling the paramedics on Sunday.

From Los Angeles Times ● Oct. 8, 2026

I’d taken a day off from visiting Augustus because I was feeling a bit unwell myself: nothing specific, just tired.

From "The Fault in Our Stars" by John Green

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