3
incredible
3
infamous
3
lousy
3
nasty
3
scabby
3
scandalous
3
scummy
3
scurvy
3
shady
3
shameful
3
sorry
3
unbelievable
3
unethical
3
unimaginable
3
unsavory
3
unthinkable
3
vile
2
bad(adjective, poor)
2
black
2
obnoxious
10 years ago|2.1k views|share |citing 
APASmart Define. (2016). creditable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/creditable/thesaurus/antonyms
ChicagoSmart Define. 2016. "creditable thesaurus" https://smartdefine.org/creditable/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, creditable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/creditable/thesaurus/antonyms>.
MLASmart Define. "creditable thesaurus" 23 March 2016. Web. 22 September 2026. <https://smartdefine.org/creditable/thesaurus/antonyms>