228 entries under adjective topic. ×

4
stupefied(dull, slow, cold, idle)
4
unmoving(still, lifeless, inactive, motionless)
4
weak
3
beat(gloomy, weary, tired, stale)
3
benumbed
3
blah(dull, quiet, slow, informal)
3
blunt
3
bovine
3
depressed(gloomy, sick, weary, dismal)
3
flaccid(weary, inactive, inert, unreceptive)
3
flat(quiet, indifferent, apathetic, lifeless)
3
indifferent(dull, quiet, beat, slow)
3
jobless(dull, idle, sluggish, lazy)
3
knocked out(expression, beat, gloomy, depressed)
3
obtuse(dull, insensibility)
3
quiescent(dull, quiet, flat, indifferent)
3
run-down(weary, fatigued)
3
sedentary(dull, idle, sluggish, lazy)
3
sleepy-eyed
3
sleepyheaded
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APASmart Define. (2016). sleepy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, sleepy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>.
MLASmart Define. "sleepy thesaurus" 18 February 2016. Web. 27 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms>