5
imperfect
4
fallible(adjective, able, prone)
3
erring(adjective, imperfect, surefire, theistic, apodictic)
3
faulty
2
black
2
defective
2
inaccurate
2
mistaken(verb, adjective)
2
unreliable
1
amorphous
1
bad
1
erroneous
1
evil
1
flawed
1
foul
1
iniquitous
1
over smart
1
sinful
1
undependable
1
vicious
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APASmart Define. (2015). unerring thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unerring/thesaurus/antonyms
ChicagoSmart Define. 2015. "unerring thesaurus" https://smartdefine.org/unerring/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unerring thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unerring/thesaurus/antonyms>.
MLASmart Define. "unerring thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unerring/thesaurus/antonyms>