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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

Derived 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.

People feel emotionally unwell and exhausted because they know that something is deeply wrong with their society and politics.

From Salon • May 28, 2026

Bill says his son clearly still appeared to be unwell, so when they arrived home, he rang the ward to ask why his son had been released.

From BBC • May 26, 2026

This rule almost certainly makes passengers much less likely to see a doctor unless they’re feeling very unwell.

From Slate • May 16, 2026

Anyone becoming unwell with symptoms of meningitis or sepsis should seek medical help urgently at the closest Accident and Emergency Department or by dialling 999.

From BBC • May 15, 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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