76 entries under heavy topic. ×

13
stagnant(adjective, calm, dull, quiet, moderate)
12
indifferent(adjective, calm, dull, weak, easy)
12
supine(adjective, dull, quiet, weak, easy)
12
tardy(adjective, adverb, dull, quiet, low)
12
weary(adjective, dull, weak, easy, slow)
11
comatose(adjective, dull, quiet, weak, easy)
11
dilatory(adjective, adverb, dull, quiet, moderate)
10
dopey(adjective, action, dull, quiet, weak)
10
laggard(adjective, adverb, dull, quiet, slow)
10
somnolent(adjective, dull, quiet, slow, careless)
9
flat(adjective, calm, dull, quiet, slow)
8
unhurried(adjective, adverb, dull, weak, easy)
7
enervated(adjective, dull, weak, easy, slow)
7
slow-moving(adjective, dull, quiet, easy, slow)
7
slumberous(adjective, dull, quiet, slow, cold)
7
spiritless(adjective, dull, quiet, weak, easy)
7
unconcerned(adjective, calm, dull, weak)
6
easy(adjective, dull, quiet, weak, slow)
6
quiet(adjective, calm, dull, lazy)
6
soporific(adjective, dull, quiet, slow)
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APASmart Define. (2016). sluggish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sluggish/thesaurus/synonyms
ChicagoSmart Define. 2016. "sluggish thesaurus" https://smartdefine.org/sluggish/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sluggish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sluggish/thesaurus/synonyms>.
MLASmart Define. "sluggish thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/sluggish/thesaurus/synonyms>