Synonyms|300Antonyms|107|Broader|6Narrower|1Related|829

37 entries under unerring topic. ×

4
satisfactory(adjective, dependable)
4
satisfying(adjective, dependable)
3
efficacious(adjective, dependable)
3
handy(adjective, dependable)
3
helpful(adjective, dependable)
3
incontrovertible(adjective, clear, certain, valid, dependable)
3
surefire(adjective, certain, reliable, trustworthy, dependable)
3
true(adjective, dependable)
3
unquestionable(adjective, certain, dependable, undisputable)
3
useful(adjective, dependable)
2
omniscient(adjective, dependable)
2
unbeatable(adjective, dependable)
2
undeceivable(adjective, dependable)
1
apodictic(adjective, dependable)
1
authoritative(adjective, dependable)
1
effectual(adjective, dependable)
1
unimpeachable(adjective, perfect, precise, flawless, faultless)
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APASmart Define. (2015). infallible thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/infallible/thesaurus/synonyms
ChicagoSmart Define. 2015. "infallible thesaurus" https://smartdefine.org/infallible/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, infallible thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/infallible/thesaurus/synonyms>.
MLASmart Define. "infallible thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/infallible/thesaurus/synonyms>