1
cataleptic
1
catlike
1
chloroformed
1
clear
1
cloddish(adjective, dull)
1
compliant(adjective, quiet, flat, indifferent, apathetic)
1
cool(adjective, quiet, indifferent, apathetic, lifeless)
1
dallying(dull, idle, sluggish, inactive, lethargic)
1
dense(adjective, dull)
1
dim(adjective, dull)
1
discontented(adjective, beat, gloomy, sick, depressed)
1
disengaged(adjective, dull, idle, sluggish, lazy)
1
disgusted(adjective, beat, gloomy, sick, depressed)
1
do-nothing(adjective, dull, idle, sluggish, lazy)
1
docile(adjective, quiet, flat, indifferent, apathetic)
1
dog-tired(adjective, beat, weary, tired, stale)
1
doltish(adjective, dull)
1
done in(expression, adjective, beat, weary, tired)
1
doped
1
dopy(adjective, tired, lethargic, dazed, drowsy)
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APASmart Define. (2016). sleepy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sleepy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>.
MLASmart Define. "sleepy thesaurus" 18 February 2016. Web. 24 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms>