59 entries under cool topic. ×

28
listless(adjective, action, calm, dull)
24
apathetic(adjective, calm, dull, weak)
23
indifferent(adjective, calm, dull, weak)
19
unconcerned(adjective, calm, dull, weak)
14
insouciant(adjective, calm, dull, relaxed)
12
nonchalant(adjective, calm, temper, relaxed)
11
lukewarm(adjective, calm, temper, relaxed)
11
uncaring(adjective, calm, temper, relaxed)
9
cold(adjective, calm, temper, relaxed)
9
impassive(adjective, calm, dull, weak)
8
careless(adjective, calm, dull, relaxed)
7
disinterested(adjective, calm, temper, careless)
7
casual(adjective, calm, relaxed, cheerful)
7
dispassionate(adjective, calm, relaxed, indifferent)
6
easy(adjective, calm, dull, quiet)
6
easygoing(adjective, calm, dull, careless)
6
unemotional(adjective, calm, relaxed, detached)
5
laid-back(adjective, calm, dull, weak)
5
negligent(adjective, calm, quiet, easy)
4
aloof(adjective, calm, temper, relaxed)
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APASmart Define. (2016). lackadaisical thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lackadaisical/thesaurus/synonyms
ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/synonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 27 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/synonyms>