Cool
Cool noun - The absence of emotional involvement.
Usage example: the judge's customary cool stood him in good stead during the sensational trial
Tranquilness and cool are semantically related. In some cases you can use "Tranquilness" instead a noun "Cool".
Tranquilness
Tranquilness noun - Evenness of emotions or temper.
Usage example: he maintained his gentle tranquilness despite the provocations
Mutual synonyms
Cite this Source
Tranquilness and Cool. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/cool/tranquilness
Cool & Tranquilness. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/cool/tranquilness>.
Tranquilness or Cool. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/cool/tranquilness.
Google Ngram Viewer shows how "cool" and "tranquilness" have occurred on timeline