Synonyms|672Antonyms|136|Broader|7Narrower|13Related|924
1
Lukewarm
1
cool
1
dignified
1
dispassionate
1
impassive
1
moderate(adjective, quiet)
1
muted
1
phlegmatic
1
repressed
1
reserved
1
restful
1
seemly
1
self-controlled
1
self-possessed
1
sober(upset, light, frivolous)
1
soft(adjective, quiet, strong, sharp, bright)
1
solemn(adjective, quiet)
1
somber
1
stately
1
steady
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APASmart Define. (2015). boisterous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/boisterous/thesaurus/antonyms
ChicagoSmart Define. 2015. "boisterous thesaurus" https://smartdefine.org/boisterous/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, boisterous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/boisterous/thesaurus/antonyms>.
MLASmart Define. "boisterous thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/boisterous/thesaurus/antonyms>