100 entries under sluggish topic. ×

1
sleepyhead(adjective, dull, quiet, slow, relaxed)
1
slow-moving(adjective, dull, idle, lazy)
1
spiritless(adjective, dull, relaxed, weary, apathetic)
1
stable(adjective, dull, idle, lazy)
1
static(adjective, dull, idle, apathetic)
1
stolid(adjective, dull, weary, apathetic, tired)
1
stupefied(adjective, dull, cold, stupid, idle)
1
tardy(dull, idle, inactive, lethargic)
1
trifling(dull, idle, inactive, lethargic)
1
unconcerned(adjective, dull, idle, inactive)
1
unemployed(adjective, dull, idle, lazy)
1
unenergetic(dull, idle, inactive, lethargic)
1
unindustrious(dull, idle, inactive, lethargic)
1
unoccupied(adjective, dull, idle, lazy)
1
unpersevering(dull, idle, inactive, lethargic)
1
unready(dull, idle, inactive, lethargic)
1
unused(adjective, dull, idle, lazy)
1
wimpy(adjective, dull, relaxed, stupid, idle)
0
inattentive(dull, idle, inactive, lethargic)
0
lackluster(adjective, weary, tired, lazy)
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APASmart Define. (2015). somnolent thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/somnolent/thesaurus/synonyms
ChicagoSmart Define. 2015. "somnolent thesaurus" https://smartdefine.org/somnolent/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, somnolent thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/somnolent/thesaurus/synonyms>.
MLASmart Define. "somnolent thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/somnolent/thesaurus/synonyms>