Sick
Sick adjective - Temporarily suffering from a disorder of the body.
Usage example: those coworkers who always seem to get sick immediately before or after long holiday weekends
Unwell is a synonym for sick in health topic. In some cases you can use "Unwell" instead the word "Sick" as an adjective or an adverb, when it comes to topics like ill, bad, not healthy. popular alternative
Unwell
Unwell adjective - Temporarily suffering from a disorder of the body.
Usage example: she missed work because she was unwell
Mutual synonyms
Both words in one sentence
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Hope even mentions at the end that Cross is "sick" (as in unwell) and that she can help him.
Source: Film / Ant-Man -
On the other hand, it's implied that the characters can get sick, or at least that disease wasn't eradicated during their lifetime, as Tycho and Leonella use the excuse of feeling unwell to escape awkward situations.
Source: Series / Silversun
Cite this Source
Unwell and Sick. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/sick/unwell
Sick & Unwell. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/sick/unwell>.
Unwell or Sick. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/sick/unwell.
Google Ngram Viewer shows how "sick" and "unwell" have occurred on timeline