70 entries under serene topic. ×

20
cool(adjective, calm, quiet, easy, relaxed)
13
unruffled(adjective, calm, quiet, cool, reasonable)
12
calm(adjective, quiet, cool, easy, relaxed)
11
unperturbed(adjective, calm, quiet, cool, easy)
10
composed(adjective, calm, quiet, cool, reasonable)
10
quiet(adjective, calm, cool, reasonable, easy)
10
tranquil(adjective, calm, quiet, cool, relaxed)
9
collected(adjective, calm, quiet, cool, reasonable)
7
sober(adjective, calm, dull, quiet, easy)
7
undisturbed(adjective, calm, quiet, cool, moderate)
6
temperate(adjective, calm, quiet, cool, moderate)
5
unexcitable(adjective, calm, quiet, cool, moderate)
5
untroubled(adjective, calm, quiet, cool, moderate)
3
placid(adjective, calm, quiet, cool, moderate)
3
reasonable(adjective, calm, quiet, easy, sensible)
3
sedate(adjective, calm, quiet, cool, reasonable)
2
at ease(expression, adjective, calm, quiet, easy)
2
easygoing(adjective, calm, quiet, cool, easy)
2
even(adjective, calm, quiet, easy, relaxed)
2
even-tempered(adjective, calm, quiet, cool, easy)
11 years ago|4.6k views|share |citing 
APASmart Define. (2015). unexcited thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unexcited/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexcited thesaurus" https://smartdefine.org/unexcited/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unexcited thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unexcited/thesaurus/synonyms>.
MLASmart Define. "unexcited thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/unexcited/thesaurus/synonyms>