Sickly
Sickly adjective - Chronically or repeatedly suffering from poor health.
Usage example: a sickly foal that seemed to catch everything that the other horses had
Unhealthy is a synonym for sickly in health topic. In some cases you can use "Unhealthy" instead the word "Sickly" as an adjective or an adverb, when it comes to topics like feeble, diseased, not healthy. popular alternative
Unhealthy
Unhealthy adjective - Bad for the well-being of the body.
Usage example: we knew that the junk food at the carnival was unhealthy, but it tasted so good!
Sickly is a synonym for unhealthy in health topic. You can use "Sickly" instead the word "Unhealthy" as an adjective or an adverb or a verb, if it concerns topics such as feeble, sick, diseased, ill-looking. popular alternative
Nearby Word: unhealthily
Mutual synonyms
Both words in one sentence
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Sickly Green Glow: Stryker's secret base is entirely lit in an unhealthy green light.
Source: Film / X2: X-Men United -
Ruri: Tragic Love; she has an unhealthy romantic obsession with a construction site safety sign.invoked Botan: Unhealthy; she is extremely sickly and weak, on top of having the terrible self-confidence to match.
Source: Manga / Anne Happy
Cite this Source
Unhealthy and Sickly. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/sickly/unhealthy
Sickly & Unhealthy. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/sickly/unhealthy>.
Unhealthy or Sickly. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/sickly/unhealthy.
Google Ngram Viewer shows how "sickly" and "unhealthy" have occurred on timeline