111 entries under casual topic. ×

18
easygoing(adjective, feature, state, calm, quiet)
13
easy(adjective, feature, state, calm, dull)
12
relaxed(adjective, feature, state, calm, quiet)
10
cool(adjective, feature, state, calm, quiet)
8
calm(adjective, feature, state, quiet, cool)
8
insouciant(adjective, feature, state, calm, cool)
7
indifferent(adjective, feature, state, calm, dull)
7
mellow(adjective, calm, quiet, cool, gentle)
6
apathetic(adjective, calm, dull, quiet, cool)
6
informal(adjective, cool, plain, mild, relaxed)
6
serene(adjective, feature, state, calm, quiet)
6
unflappable(adjective, calm, quiet, cool, moderate)
5
nonchalant(adjective, feature, state, calm, cool)
5
unceremonious(adjective, plain, indifferent, nonchalant)
5
unconcerned(adjective, feature, state, calm, dull)
5
untroubled(adjective, feature, state, calm, quiet)
4
breezy(adjective, feature, state, cool, mild)
4
lackadaisical(adjective, calm, dull, cool, weak)
4
listless(adjective, calm, dull, quiet, cool)
4
tolerant(adjective, feature, state, calm, informal)
11 years ago|14k views|share |citing 
APASmart Define. (2015). laid-back thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/laid-back/thesaurus/synonyms
ChicagoSmart Define. 2015. "laid-back thesaurus" https://smartdefine.org/laid-back/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, laid-back thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/laid-back/thesaurus/synonyms>.
MLASmart Define. "laid-back thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/laid-back/thesaurus/synonyms>