64 entries under lethargic topic. ×

37
heedless(noun, adjective, sharp, rude, careless)
35
neglectful(noun, adjective, dull, sharp, rude)
33
careless(noun, adjective, dull, cold, indifferent)
26
thoughtless(adjective, sharp, rude, careless, cold)
24
remiss(noun, adjective, dull, careless, cold)
22
indifferent(noun, adjective, dull, sharp, neglect)
14
absent(adjective, ability, careless, attention, unconcerned)
13
abstracted(noun, adjective, dull, ability, careless)
12
unconcerned(noun, adjective, dull, sharp, rude)
11
listless(adjective, energy, sharp, rude, careless)
11
slack(noun, adjective, dull, careless, indifferent)
10
apathetic(noun, adjective, dull, sharp, rude)
10
dreamy(adjective, dull, careless, indifferent, attention)
9
uninterested(adjective, dull, indifferent, coarse, detached)
6
bored(adjective, dull, careless, attention, tired)
6
lackadaisical(adjective, dull, careless, indifferent, idle)
5
insouciant(adjective, dull, neglect, indifferent, unsympathetic)
5
lazy(adjective, careless, indifferent, idle, apathetic)
4
easygoing(adjective, careless, languid, indolent)
4
inactive(adjective, dull, neglect, careless, indifferent)
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APASmart Define. (2015). inattentive thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inattentive/thesaurus/synonyms
ChicagoSmart Define. 2015. "inattentive thesaurus" https://smartdefine.org/inattentive/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, inattentive thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inattentive/thesaurus/synonyms>.
MLASmart Define. "inattentive thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/inattentive/thesaurus/synonyms>