106 entries under relaxed topic. ×

6
unemotional(adjective, calm, cool, detached)
5
dopey(adjective, dull, weak, easy, flat)
5
laid-back(adjective, calm, dull, cool, weak)
5
moony(adjective, dull, weak, easy, slow)
5
negligent(adjective, calm, quiet, cool, easy)
5
perfunctory(adjective, informal, indifferent, detached)
5
sleepy(adjective, dull, quiet, easy, slow)
4
aloof(adjective, calm, cool, temper)
4
incurious(adjective, calm, cool, careless)
4
leisurely(adjective, dull, quiet, weak, easy)
4
offhand(adjective, calm, cool, detached)
4
somnolent(adjective, dull, careless, indifferent)
4
unexcited(adjective, calm, cool, indifferent)
4
unhurried(adjective, dull, quiet, weak, easy)
3
blase(calm, cool, informal, indifferent)
3
detached(adjective, calm, cool, indifferent)
3
heavy(adjective, dull, quiet, weak, easy)
3
serene(adjective, calm, cool, indifferent)
3
unfeeling(adjective, calm, cool, detached)
3
weak(adjective, dull, strong, easy, slow)
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APASmart Define. (2016). lackadaisical thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/lackadaisical/thesaurus/synonyms
ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/synonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 30 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/synonyms>