110 entries under adjective topic. ×

2
inactive(dull, quiet, weak, easy)
2
energyless(dull, weak, easy, slow)
1
comatose(dull, quiet, weak, easy)
1
impassive(dull, weak, easy, slow)
1
laggard(dull, stupid, weary, apathetic)
1
languid(dull, weak, easy, slow)
1
lethargic(dull, quiet, weak, easy)
1
sleepy(dull, quiet, slow, relaxed)
1
slow(dull, quiet, weak, easy)
1
snoozy(dull, quiet, weak, easy)
1
debilitated(dull, stupid, idle, weary)
1
dilatory(dull, stupid, weary, apathetic)
1
dormant(dull, stupid, idle, weary)
1
draggy(dull, quiet, slow, heavy)
1
drooping(dull, relaxed, sluggish, lazy)
1
drowsy(quiet, slow, relaxed, heavy)
1
dull(quiet, relaxed, weary, apathetic)
1
enervated(dull, weak, easy, slow)
1
faint(dull, weak, easy, slow)
1
feeble(dull, weak, easy, slow)
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APASmart Define. (2015). sleepyhead thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sleepyhead/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleepyhead thesaurus" https://smartdefine.org/sleepyhead/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sleepyhead thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sleepyhead/thesaurus/synonyms>.
MLASmart Define. "sleepyhead thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/sleepyhead/thesaurus/synonyms>