4
sinless
4
unblemished(adjective, perfect, flawless, faultless, textbook)
3
adjusted(adjective, exact, strict, scrupulous, detailed)
3
attentive to details(adjective, exact, strict, scrupulous, detailed)
3
authentic(adjective, correct, right, honest, solid)
3
businesslike(adjective, exact, strict, scrupulous, detailed)
3
clear(correct, certain, true, explicit, valid)
3
clockwork(adjective, exact, strict, scrupulous, detailed)
3
concise(adjective, exact, strict, scrupulous, detailed)
3
conscientious(truth, thorough)
3
dead
3
deadly
3
definitive(adjective, exact, strict, scrupulous, detailed)
3
delicate
3
errorless(adjective, perfect, precise, flawless, faultless)
3
explicative(adjective, exact, strict, scrupulous, detailed)
3
flawless(adjective, perfect, faultless, textbook, infallible)
3
foolproof(adjective, flawless, faultless, textbook, infallible)
3
free from error(adjective, exact, strict, scrupulous, detailed)
3
free from mistakes(adjective, exact, strict, scrupulous, detailed)
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APASmart Define. (2015). unerring thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unerring/thesaurus/synonyms
ChicagoSmart Define. 2015. "unerring thesaurus" https://smartdefine.org/unerring/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unerring thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unerring/thesaurus/synonyms>.
MLASmart Define. "unerring thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unerring/thesaurus/synonyms>