0
insistent
0
intense
0
intent
0
intoxicating
0
invigorating
0
involved
0
jaunty
0
jazzy
0
juiced
0
laborious(adjective, hardworking)
0
loving
0
lusty
0
meticulous
0
mettlesome
0
mobile
0
motivated
0
nasty
0
nervous
0
nuts
0
obnoxious
10 years ago|3.2k views|share |citing 
APASmart Define. (2016). lackadaisical thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/lackadaisical/thesaurus/antonyms
ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/antonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 29 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/antonyms>