40 entries under mild topic. ×

25
casual(adjective, calm, open, free, smooth)
17
relaxed(adjective, calm, quiet, clear, open)
8
breezy(adjective, cool, simple, easy)
4
laid-back(adjective, cool, plain, informal)
4
liberal(adjective, calm, clear, open, easy)
2
amenable(relaxed, tolerant, laid-back, permissive)
2
calm(adjective, relaxed, casual, comfortable)
2
composed(relaxed, tolerant, laid-back, permissive)
2
low-pressure(adjective, cool, simple, easy)
2
nonchalant(adjective, cool, relaxed, tolerant)
2
undemanding(relaxed, tolerant, laid-back, permissive)
1
carefree(easy, relaxed, lively, cheerful)
1
complaisant(open, relaxed, natural, tolerant)
1
flexible(relaxed, tolerant, laid-back, permissive)
1
indulgent(relaxed, tolerant, laid-back, permissive)
1
insouciant(adjective, cool, relaxed, tolerant)
1
lenient(relaxed, tolerant, laid-back, permissive)
1
moderate(adjective, calm, relaxed, casual)
1
serene(relaxed, tolerant, laid-back, permissive)
1
tolerant(open, relaxed, natural, laid-back)
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APASmart Define. (2016). informal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/informal/thesaurus/synonyms
ChicagoSmart Define. 2016. "informal thesaurus" https://smartdefine.org/informal/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, informal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/informal/thesaurus/synonyms>.
MLASmart Define. "informal thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/informal/thesaurus/synonyms>