140 entries under quiet topic. ×

8
easy(adjective, relaxed, heavy, deliberate)
8
free(verb, adjective, calm, clear)
8
laggard(noun, adjective, dull, easy)
8
torpid(adjective, dull, flat, slow)
7
heavy(adjective, dull, moderate, easy)
7
loosen(verb, calm, reduce, release)
7
mitigate(verb, stop, calm, reduce)
7
reluctant(adjective, easy, heavy, deliberate)
6
apathetic(noun, adjective, dull, easy)
6
indifferent(noun, adjective, dull, soft)
6
lifeless(adjective, dull, flat, slow)
5
dead(dull, flat, still, lifeless)
5
slow-moving(adjective, dull, easy, slow)
5
stagnant(adjective, dull, moderate, flat)
5
untighten(verb, calm, reduce, release)
4
deliberate(verb, adjective, stop, delay)
4
leaden(adjective, dull, moderate, easy)
4
lull(noun, verb, calm, subdue)
4
phlegmatic(adjective, dull, moderate, easy)
4
spiritless(adjective, dull, flat, heavy)
10 years ago|29k views|share |citing 
APASmart Define. (2016). slack thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slack/thesaurus/synonyms
ChicagoSmart Define. 2016. "slack thesaurus" https://smartdefine.org/slack/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, slack thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slack/thesaurus/synonyms>.
MLASmart Define. "slack thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/slack/thesaurus/synonyms>