48 entries under sluggish topic. ×

12
dormant(adjective, calm, dull, gentle, still)
11
sleepy(adjective, dull, quiet, flat, slow)
10
inert(adjective, calm, quiet, moving, gentle)
8
comatose(adjective, quiet, slow, heavy, tired)
8
somnolent(adjective, dull, quiet, slow, heavy)
7
slumbering(adjective, calm, gentle, passive)
6
idle(adjective, calm, dull, quiet, gentle)
6
torpid(adjective, calm, dull, quiet, slow)
5
dull(adjective, quiet, still, tired)
5
quiescent(adjective, calm, dull, quiet, gentle)
4
lethargic(adjective, dull, quiet, slow, heavy)
4
passive(adjective, calm, dull, lifeless)
4
still(adjective, calm, dull, gentle)
3
latent(adjective, calm, dull, quiet, gentle)
3
motionless(adjective, calm, dull, quiet, gentle)
2
fallow(calm, gentle, still, inactive)
2
indolent(adjective, dull, still, lifeless)
2
inoperative(adjective, calm, dull, gentle, still)
2
lax(adjective, dull, idle, lazy)
2
lazy(adjective, dull, still, idle)
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APASmart Define. (2016). asleep thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/asleep/thesaurus/synonyms
ChicagoSmart Define. 2016. "asleep thesaurus" https://smartdefine.org/asleep/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, asleep thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/asleep/thesaurus/synonyms>.
MLASmart Define. "asleep thesaurus" 8 February 2016. Web. 23 September 2026. <https://smartdefine.org/asleep/thesaurus/synonyms>