228 entries under adjective topic. ×

31
lethargic(dull, quiet, slow, careless)
23
sluggish(dull, quiet, low, slow)
22
drowsy(dull, quiet, beat, slow)
19
somnolent(dull, quiet, beat, slow)
18
torpid(dull, quiet, slow, careless)
18
listless(dull, quiet, energy, slow)
18
weary(dull, beat, slow, careless)
17
slow(dull, quiet, careless, relaxed)
17
inert(dull, quiet, moving, slow)
17
dozy(dull, quiet, slow, heavy)
16
inactive(action, dull, quiet, low)
16
tired(dull, beat, slow, careless)
15
dull(dull, low, careless, relaxed)
12
apathetic(dull, quiet, slow, careless)
12
dormant(dull, still, idle, weary)
12
lifeless(dull, quiet, careless, indifferent)
11
soporific(dull, quiet, slow, heavy)
11
comatose(dull, quiet, slow, careless)
11
slumberous(dull, quiet, slow, cold)
10
asleep(dull, quiet, flat, slow)
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APASmart Define. (2016). sleepy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sleepy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>.
MLASmart Define. "sleepy thesaurus" 18 February 2016. Web. 25 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms>