Mental
Unhealthy
Unhealthy adjective - Not in or exhibiting good health in body or mind.
Usage example: unhealthy ulcers
Mental and unhealthy are semantically related. Sometimes you can use "Mental" instead an adjective "Unhealthy".
Nearby Word: unhealthily
Both words in one sentence
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Kerub's desperation led to an unhealthy addiction to gambling, causing him to be sent to a mental institute that helps rid people of said addiction.
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This is often portrayed as being unhealthy and/or tied in with some kind of mental condition.
Source: Schedule Fanatic -
Much more prominent in the anime; the novel shows Jack is simply concerned for Rei's mental state, as getting attached to a machine is very unhealthy.
Cite this Source
Unhealthy and Mental. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/mental/unhealthy
Mental & Unhealthy. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/mental/unhealthy>.
Unhealthy or Mental. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/mental/unhealthy.
Google Ngram Viewer shows how "mental" and "unhealthy" have occurred on timeline