Synonyms|471Antonyms|205|Broader|3Narrower|9Related|940

148 entries under dull topic. ×

1
disengaged(adjective, idle, sluggish, lazy)
1
do-nothing(adjective, idle, sluggish, lazy)
1
doltish
1
down(adjective, low, still, idle)
1
gradual(late, behind)
1
having spring fever(expression, adjective, idiom, stupid)
1
impassive(adjective, slow, relaxed, still)
1
in holding pattern(expression, adjective, idiom, idle)
1
inattentive(idle, sluggish, inactive, lethargic)
1
inoperative(adjective, idle, sluggish, lazy)
1
lagging(idle, sluggish, lifeless, inactive)
1
latent(adjective, quiet, flat, indifferent)
1
lax(adjective, idle, sluggish, lazy)
1
loafing(idle, sluggish, inactive, lethargic)
1
loutish
1
low-key(adjective, idle, sluggish, lazy)
1
moderate(late, behind)
1
mothballed(adjective, idle, sluggish, lazy)
1
nebbish(adjective, slow, relaxed, stupid)
1
neglectful(idle, sluggish, inactive, lethargic)
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APASmart Define. (2016). sleepy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, sleepy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>.
MLASmart Define. "sleepy thesaurus" 18 February 2016. Web. 29 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms>