3
easygoing(adjective, violent, excited, permissive, complacent)
2
carefree(adjective, lighthearted, untroubled)
2
brave
2
serene(adjective, upset, poor)
2
together(adjective, upset, composed)
2
unflappable(adjective, calm, cool, nervous)
2
unperturbed(adjective, anxious, unruffled)
1
lighthearted(adjective, carefree, untroubled)
1
affable
1
dauntless
1
fearless
1
gleeful(adjective, happy, sad)
1
imperturbable
1
insouciant
1
nerveless
1
nonchalant(hard, concerned)
1
placid
1
pleasured
1
reassured
1
reposeful(adjective, rough, harsh)
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APASmart Define. (2016). worried thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/worried/thesaurus/antonyms
ChicagoSmart Define. 2016. "worried thesaurus" https://smartdefine.org/worried/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, worried thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/worried/thesaurus/antonyms>.
MLASmart Define. "worried thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/worried/thesaurus/antonyms>