87 entries under feature topic. ×

79
peaceful(adjective, calm, serene, state, quiet)
75
calm(adjective, state, calm, quiet)
70
serene(adjective, state, calm, quiet)
43
quiet(adjective, state, calm, light)
35
cool(adjective, state, calm, quiet)
30
undisturbed(adjective, state, calm, quiet)
26
untroubled(adjective, state, calm, quiet)
20
mild(adjective, state, calm, quiet)
18
easy(adjective, state, calm, quiet)
16
easygoing(adjective, state, calm, quiet)
15
relaxed(adjective, state, calm, quiet)
7
languid(adjective, state, calm, quiet)
7
nonchalant(adjective, state, calm, quiet)
6
unhurried(adjective, state, calm, quiet)
5
easy-going(adjective, state, calm, quiet)
4
unconcerned(adjective, state, calm, quiet)
4
carefree(adjective, state, calm, quiet)
4
casual(adjective, state, calm, informal)
4
contented(adjective, state, calm, quiet)
4
free and easy(expression, adjective, idiom, state)
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APASmart Define. (2016). tranquil thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tranquil/thesaurus/synonyms
ChicagoSmart Define. 2016. "tranquil thesaurus" https://smartdefine.org/tranquil/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, tranquil thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tranquil/thesaurus/synonyms>.
MLASmart Define. "tranquil thesaurus" 3 March 2016. Web. 21 September 2026. <https://smartdefine.org/tranquil/thesaurus/synonyms>