148 entries under dull topic. ×

2
draggy(adjective, quiet, low, slow)
2
flagging(adjective, beat, slow, careless)
2
immobile(adjective, still, idle, sluggish)
2
laggard(adjective, quiet, easy, careless)
2
low(late, behind)
2
static(adjective, quiet, flat, indifferent)
2
stretchy(adjective, stupid, idle, weary)
2
tame(late, insensibility, behind)
2
tedious(late, behind)
2
uneventful(late, behind)
1
dilatory(adjective, quiet, moderate, easy)
1
abeyant(adjective, idle, sluggish, lazy)
1
asleep on the job(expression, idiom, idle, sluggish)
1
besotted
1
boorish
1
careless(idle, sluggish, inactive, lethargic)
1
cloddish
1
dallying(idle, sluggish, inactive, lethargic)
1
dense
1
dim
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APASmart Define. (2016). sleepy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, sleepy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>.
MLASmart Define. "sleepy thesaurus" 18 February 2016. Web. 28 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms>