163 entries under smooth topic. ×

1
spiritless(adjective, calm, dull, quiet, cool)
1
stable(adjective, calm, quiet, easy)
1
stagnant(adjective, calm, dull, quiet)
1
stock-still(adjective, calm, quiet, tranquil)
1
stormless(adjective, quiet, cool, mild)
1
sunny(adjective, calm, clear, weak)
1
tepid(adjective, calm, weak, soft)
1
vapid(adjective, calm, kind, soft)
1
waveless(adjective, quiet, cool, mild)
1
whist(noun, adjective, calm, quiet)
1
wimpy(adjective, calm, weak, soft)
0
benignant(adjective, calm, weak, soft)
0
breathless(adjective, quiet, cool, mild)
0
breezeless(adjective, quiet, cool, mild)
0
bucolic(adjective, quiet, cool, mild)
0
choice(adjective, calm, weak, soft)
0
clammed up(expression, adjective, calm, quiet)
0
clear(adjective, calm, weak, soft)
0
deathlike(adjective, calm, quiet, tranquil)
0
deathly(adjective, calm, quiet, tranquil)
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APASmart Define. (2016). placid thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/placid/thesaurus/synonyms
ChicagoSmart Define. 2016. "placid thesaurus" https://smartdefine.org/placid/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, placid thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/placid/thesaurus/synonyms>.
MLASmart Define. "placid thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/placid/thesaurus/synonyms>