15
careless(adjective, loose, sloppy, attentive, artless)
10
negligent(adjective, loose, sloppy)
9
unscrupulous(adjective, good, honest, loose, immoral)
7
outrageous
6
dishonest(adjective, good, open, honest, loose)
6
inaccurate(adjective, loose, sloppy)
6
lax
6
sinful
5
reckless
4
incautious
4
shameful
4
unconscionable
4
unprincipled(good, honest)
3
half ass
3
black
3
corrupt
3
cursory
3
heedless
3
impetuous
3
non-punctual
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APASmart Define. (2016). scrupulous thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/scrupulous/thesaurus/antonyms
ChicagoSmart Define. 2016. "scrupulous thesaurus" https://smartdefine.org/scrupulous/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, scrupulous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/scrupulous/thesaurus/antonyms>.
MLASmart Define. "scrupulous thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/scrupulous/thesaurus/antonyms>