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
Weak is a synonym for sickly in unhealthy topic. In some cases you can use "Weak" instead an adjective "Sickly", when it comes to topics like health, delicate, not healthy.
Mutual synonyms
Both words in one sentence
- In "Dear Scootaloo", it is mentioned that some pegasi (much like the Spartans) abandon their foals for appearing too weak or sickly.
Source: Parental Abandonment / Fan Works - Parental Abandonment: Some pegasi (much like the Spartans) abandon their foals for appearing too weak or sickly.
- Charles was weak and sickly since birth, and had to overcome physical infirmity (weak ankles) just to walk as a child.
Source: Spare to the Throne
Cite this Source
Weak and Sickly. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/sickly/weak
Sickly & Weak. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/sickly/weak>.
Weak or Sickly. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/sickly/weak.
Google Ngram Viewer shows how "sickly" and "weak" have occurred on timeline