148 entries under dull topic. ×

1
unoccupied(adjective, idle, sluggish, lazy)
1
unpersevering(idle, sluggish, inactive, lethargic)
1
unready(idle, sluggish, inactive, lethargic)
1
unused(adjective, idle, sluggish, lazy)
1
wimpy(adjective, slow, relaxed, stupid)
0
backward(late, behind)
0
behind
0
behindhand(late, behind)
0
belated(late, behind)
0
conservative(late, behind)
0
delayed(late, behind)
0
detained(late, behind)
0
hindered(late, behind)
0
impeded(late, behind)
0
late
0
lingering(late, behind)
0
long-delayed(late, behind)
0
long-drawn-out(late, behind)
0
off(late, behind)
0
overdue(late, behind)
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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>