2
unhurried(adjective, feature, state, mild, relaxed)
2
uninvolved(adjective, indifferent, unsympathetic, inattentive, uninterested)
2
unperturbed(adjective, calm, cool, relaxed, indifferent)
2
unresponsive(adjective, cold, dead, apathy, passive)
2
unsolicitous
2
unsympathetic(adjective, indifferent, inattentive, uninterested, nonchalant)
2
unwilling(adjective, indifferent)
2
upbeat(adjective, feature, state, trait)
2
withdrawn(cool, informal, relaxed, easygoing, laid-back)
1
accidental
1
amenable(mild, relaxed, tolerant, laid-back, permissive)
1
apathetical(adjective, cold, dead, apathy, passive)
1
benumbed
1
blithely unconcerned
1
bouncy(adjective, feature, state, trait)
1
bubbly(adjective, feature, state, trait)
1
cavalier
1
charming
1
chill
1
chilly
11 years ago|16k views|share |citing 
APASmart Define. (2015). insouciant thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/insouciant/thesaurus/synonyms
ChicagoSmart Define. 2015. "insouciant thesaurus" https://smartdefine.org/insouciant/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, insouciant thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/insouciant/thesaurus/synonyms>.
MLASmart Define. "insouciant thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/insouciant/thesaurus/synonyms>