138 entries under tranquillity topic. ×

8
benevolent(adjective, mild, characteristic, good, pleasant)
8
bloodless(adjective, serene, characteristic, calm, quiet)
8
calming(adjective, characteristic, calmness, relaxing, soothing)
8
laid-back(adjective, feature, state, trait, characteristic)
7
disciplined(adjective, state, quiet, soft, pleasant)
7
motionless(adjective, smooth, quiet, cool, mild)
7
nonaggressive(adjective, characteristic, quiet, cool, friendly)
7
peacemaking(adjective, characteristic, calm, quiet, calmness)
6
noiseless(adjective, soft, quiet, smooth, reticent)
6
self-composed(adjective, characteristic, state, quiet, rest)
5
affable(adjective, characteristic, calmness)
5
mild(adjective, characteristic, calmness)
5
quieted(soft, adjective, reticent, silent, characteristic)
5
well-balanced(adjective, undisturbed, characteristic, calm, quiet)
5
windless(adjective, cool, smooth, mild, characteristic)
4
unwarlike(adjective, state, harmony, peace, characteristic)
3
equal(adjective, characteristic, state, calmness, coolness)
3
limpid(adjective, characteristic, state, calmness, coolness)
3
lown(adjective, characteristic, informal, calmness)
3
possessed(adjective, characteristic, state, calmness, coolness)
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APASmart Define. (2016). peaceful thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/peaceful/thesaurus/synonyms
ChicagoSmart Define. 2016. "peaceful thesaurus" https://smartdefine.org/peaceful/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, peaceful thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/peaceful/thesaurus/synonyms>.
MLASmart Define. "peaceful thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/peaceful/thesaurus/synonyms>