Synonyms|524Antonyms|236|Broader|3Narrower|8Related|1.8k

326 entries under adjective topic. ×

8
unmoved(dull, flat, low, sad)
7
disinterested(calm, cool, temper, careless)
7
casual(calm, cool, relaxed, cheerful)
7
dispassionate(calm, cool, relaxed, indifferent)
7
enervated(dull, weak, easy, flat)
7
inattentive(dull, careless, indifferent, idle)
7
lax(slow, careless, indifferent, casual)
6
devil-may-care(easygoing, indifference, carefree)
6
dilatory(dull, quiet, easy, slow)
6
drowsy(dull, quiet, easy, careless)
6
easy(calm, dull, quiet, cool)
6
easygoing(calm, dull, cool, careless)
6
half-hearted(temper, cold, indifferent, negative)
6
insensible(temper, cold, indifferent, negative)
6
languishing(dull, weak, easy, flat)
6
remiss(dull, careless, casual, thoughtless)
6
tepid(temper, cold, indifferent, negative)
6
unemotional(calm, cool, relaxed, detached)
5
dopey(dull, weak, easy, flat)
5
heedless(indifferent, cheerful, casual, unsympathetic)
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ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/synonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 28 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/synonyms>