326 entries under adjective topic. ×

5
inanimate(dull, low, depressed, lethargic)
5
laid-back(calm, dull, cool, weak)
5
moony(dull, weak, easy, slow)
5
negligent(calm, quiet, cool, easy)
5
perfunctory(informal, relaxed, indifferent, detached)
5
sleepy(dull, quiet, easy, slow)
4
aloof(calm, cool, temper, relaxed)
4
benumbed
4
drugged(tired, lethargic, sleepy, dazed)
4
frigid(temper, cold, negative, indifference)
4
halfhearted(temper, careless, cold, indifferent)
4
incurious(calm, cool, careless, relaxed)
4
insensitive(temper, cold, indifferent, negative)
4
lagging(dull, idle, sluggish, dubious)
4
leisurely(dull, quiet, weak, easy)
4
lumpish
4
lymphatic(action, weak, heavy, still)
4
offhand(calm, cool, relaxed, detached)
4
somnolent(dull, careless, relaxed, indifferent)
4
stolid(dull, weary, apathetic, tired)
10 years ago|21k views|share |citing 
APASmart Define. (2016). lackadaisical thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/lackadaisical/thesaurus/synonyms
ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/synonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 29 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/synonyms>