87 entries under lethargic topic. ×

1
loafing(dull, idle, sluggish, inactive)
1
lulling(adjective, tired, dazed, drowsy)
1
neglectful(dull, idle, sluggish, inactive)
1
procrastinating(dull, idle, sluggish, inactive)
1
remiss(dull, idle, sluggish, inactive)
1
shiftless(dull, idle, sluggish, inactive)
1
sleepyhead(adjective, dull, quiet, slow, relaxed)
1
tardy(dull, idle, sluggish, late, inactive)
1
trifling(dull, idle, sluggish, inactive)
1
unconcerned(adjective, dull, still, idle, sluggish)
1
unenergetic(dull, idle, sluggish, inactive)
1
unindustrious(dull, idle, sluggish, inactive)
1
unpersevering(dull, idle, sluggish, inactive)
1
unready(dull, idle, sluggish, inactive)
0
absent(lifeless, languid, indolent, lukewarm)
0
abstracted(languid, indolent)
0
easygoing(lifeless, languid, indolent, lukewarm)
0
energyless(still, lifeless, languid, indolent)
0
heedless(lifeless, languid, indolent, lukewarm)
0
languishing(still, languid, indolent, torpid)
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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>