113 entries under placid topic. ×

4
reserved(adjective, cool, unfriendly, blank, aloof)
4
unmoved(adjective, cool, sad, indifferent, depressed)
4
unsympathetic(adjective, dull, quiet, hard, cool)
3
bland(adjective, calm, dull, weak, kind)
3
callous(adjective, dull, quiet, hard, cool)
3
insensible(adjective, dull, quiet, hard, cool)
3
insensitive(adjective, dull, quiet, hard, careless)
3
matter-of-fact(adjective, cool, excite, cold, useful)
3
mild(adjective, dull, quiet, weak, kind)
3
nonchalant(adjective, cool, blank, aloof, unemotional)
2
blank(adjective, dull, quiet, flat, heavy)
2
collected(adjective, cool, blank, aloof, unemotional)
2
composed(adjective, cool, blank, aloof, unemotional)
2
deferential(adjective, calm, quiet, kind, smooth)
2
easy(adjective, calm, dull, weak, kind)
2
forbearing(adjective, calm, quiet, kind, smooth)
2
imperturbable(adjective, cool, unfriendly, blank, aloof)
2
inexcitable(adjective, cool, blank, aloof, unemotional)
2
still(adjective, dull, quiet, flat, slow)
2
stoic(adjective, cool, blank, aloof, unemotional)
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APASmart Define. (2015). spiritless thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/spiritless/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiritless thesaurus" https://smartdefine.org/spiritless/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, spiritless thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/spiritless/thesaurus/synonyms>.
MLASmart Define. "spiritless thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/spiritless/thesaurus/synonyms>