4
unflustered(adjective, calm, peaceful, unconcerned, tranquil)
4
unstirred(adjective, calm, peaceful, tranquil)
3
aloof(adjective, calm, quiet, cool, moderate)
3
amicable(adjective, calm, quiet, cool, smooth)
3
at rest(expression, adjective, calm, quiet, secure)
3
balmy(adjective, calm, quiet, weak, smooth)
3
benign(adjective, calm, weak, smooth, soft)
3
certain(adjective, confident)
3
cheerful(adjective, feature, state, secure, soft)
3
cheery(adjective, feature, state, happy, relaxed)
3
contented(adjective, feature, state, calm, quiet)
3
dispassionate(adjective, calm, quiet, cool, soft)
3
enjoyable(adjective, feature, state, secure, soft)
3
feckless(adjective, feature, state, indifferent, trait)
3
friendly(calm, quiet, peaceful, serene, soothing)
3
home
3
idyllic(adjective, peaceful)
3
imperturbable(adjective, calm, quiet, cool, moderate)
3
impregnable
3
inviolable
11 years ago|9.6k views|share |citing 
APASmart Define. (2015). untroubled thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/untroubled/thesaurus/synonyms
ChicagoSmart Define. 2015. "untroubled thesaurus" https://smartdefine.org/untroubled/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, untroubled thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/untroubled/thesaurus/synonyms>.
MLASmart Define. "untroubled thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/untroubled/thesaurus/synonyms>