102 entries under sluggish topic. ×

18
spiritless(adjective, action, dull, quiet, weak)
17
sleepy(adjective, dull, quiet, energy, easy)
17
supine(adjective, dull, weak, energy, easy)
17
uninterested(adjective, dull, weak, energy, easy)
15
leaden(adjective, action, dull, quiet, weak)
15
slack(adjective, dull, quiet, energy, easy)
14
limp(adjective, action, dull, weak, energy)
13
dormant(adjective, dull, quiet, energy, still)
12
heavy(adjective, dull, quiet, weak, energy)
12
stagnant(adjective, dull, quiet, easy, flat)
11
weary(adjective, dull, beat, weak, easy)
10
drowsy(adjective, dull, quiet, energy, easy)
10
faint(verb, adjective, break, dull, weak)
10
tired(adjective, dull, beat, weak, slow)
9
enervated(adjective, dull, beat, weak, energy)
8
comatose(adjective, dull, quiet, weak, easy)
8
dopey(adjective, dull, quiet, weak, easy)
8
inattentive(adjective, energy, sharp, rude, careless)
8
unresponsive(adjective, calm, dull, quiet, flat)
7
debilitated(adjective, dull, weary, tired)
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APASmart Define. (2016). listless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/listless/thesaurus/synonyms
ChicagoSmart Define. 2016. "listless thesaurus" https://smartdefine.org/listless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, listless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/listless/thesaurus/synonyms>.
MLASmart Define. "listless thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/listless/thesaurus/synonyms>