6
quiescence(noun, calm, quiet, peace, calmness)
6
smoothness(noun, peace, simplicity, straightforwardness, easiness)
5
concord(noun, understanding, agreement, accord, harmony)
5
harmony(noun, calm, understanding, agreement, accord)
5
order(noun, calm, control, quiet, harmony)
5
silence(noun, calm, quiet, rest, peace)
4
amity(noun, understanding, agreement, accord, harmony)
4
ataraxia(noun, calm, control, order, quiet)
4
contentment(noun, calm, quiet, pleasure, ease)
4
coolness(noun, calm, control, order, quiet)
4
hush(noun, calm, control, order, quiet)
4
imperturbation(noun, calm, control, order, quiet)
4
lull(noun, calm, quiet, rest, pause)
4
nonchalance(noun, calm, peace, simplicity, poise)
4
patience(noun, calm, quiet, rest, peace)
4
poise(noun, calm, ease, rest, content)
4
seclusion
3
calming(noun, moderation)
3
heartsease
3
inactivity(noun, calm, quiet, ease, rest)
10 years ago|8.6k views|share |citing 
APASmart Define. (2016). tranquility thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tranquility/thesaurus/synonyms
ChicagoSmart Define. 2016. "tranquility thesaurus" https://smartdefine.org/tranquility/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, tranquility thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tranquility/thesaurus/synonyms>.
MLASmart Define. "tranquility thesaurus" 1 March 2016. Web. 21 September 2026. <https://smartdefine.org/tranquility/thesaurus/synonyms>