Synonyms|207Antonyms|86|Broader|3Narrower|0Related|367

54 entries under adjective topic. ×

11
perfect
6
infallible(dependable, unerring)
6
reliable
6
unerring
4
sure
4
certain
4
correct
3
definite
3
strong
2
unfailing
1
credible
1
fail-safe
1
good
1
impeccable
1
wholesome
0
able
0
beefy
0
cogent
0
confidential
0
considerable
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APASmart Define. (2015). fallible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fallible/thesaurus/antonyms
ChicagoSmart Define. 2015. "fallible thesaurus" https://smartdefine.org/fallible/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, fallible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fallible/thesaurus/antonyms>.
MLASmart Define. "fallible thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/fallible/thesaurus/antonyms>