Not functioning
Unsound and not functioning are semantically related. In some cases you can use "Unsound" instead an adjective phrase "Not functioning".
Unsound
Unsound adjective - Having or showing a very abnormal or sick state of mind.
Not functioning and unsound are semantically related. Sometimes you can use "Not functioning" instead an adjective "Unsound".
Cite this Source
Unsound and Not functioning. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/not_functioning/unsound
Not functioning & Unsound. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/not_functioning/unsound>.
Unsound or Not functioning. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/not_functioning/unsound.
Google Ngram Viewer shows how "not functioning" and "unsound" have occurred on timeline