113 entries under placid topic. ×

7
jejune(adjective, dull, quiet, weak, kind)
7
passionless(adjective, dull, quiet, cool, slow)
7
subdued(adjective, calm, dull, quiet, kind)
7
submissive(adjective, quiet, weak, kind, smooth)
7
subservient(adjective, calm, kind, smooth, soft)
7
unfeeling(adjective, hard, cool, careless, cold)
6
empty(adjective, dull, quiet, flat, heavy)
6
phlegmatic(adjective, dull, cool, weak, easy)
6
unemotional(adjective, hard, cool, unfriendly, blank)
5
cold-blooded(adjective, hard, cool, careless, indifferent)
5
cool(adjective, dull, kind, gentle, warm)
5
dispassionate(adjective, cool, blank, aloof, unemotional)
5
emotionless(adjective, cool, cold, indifferent, useful)
5
insusceptible(adjective, cool, blank, aloof, unemotional)
5
slack(adjective, dull, quiet, flat, heavy)
5
soft(adjective, dull, quiet, weak, kind)
5
unresponsive(adjective, dull, quiet, hard, cool)
5
wooden(adjective, dull, quiet, cool, flat)
4
docile(adjective, calm, quiet, kind, smooth)
4
impassible(adjective, dull, quiet, flat, heavy)
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APASmart Define. (2015). spiritless thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/spiritless/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiritless thesaurus" https://smartdefine.org/spiritless/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, spiritless thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/spiritless/thesaurus/synonyms>.
MLASmart Define. "spiritless thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/spiritless/thesaurus/synonyms>