98 entries under faultless topic. ×

47
positive(adjective, good, set, clear, strong)
44
definite(adjective, good, clear, strong, complete)
32
absolute(adjective, clear, strong, complete, correct)
14
true(adjective, good, strong, correct, firm)
13
distinct(adjective, clear, correct, firm, plain)
13
express(adjective, clear, complete, correct, total)
12
precise(adjective, clear, correct, honest, plain)
9
sound(noun, adjective, clear, strong, easy)
8
unqualified(adjective, clear, complete, flat, firm)
6
accurate(adjective, set, clear, complete, correct)
6
faithful(adjective, good, strong, correct, honest)
6
foolproof(adjective, flawless, textbook, infallible)
6
right(adjective, correct, perfect, exact, physical)
5
exact(adjective, clear, correct, honest, plain)
5
perfect(adjective, clear, complete, correct, total)
4
downright(adjective, clear, complete, flat, total)
4
supreme(adjective, flawless, absolute, textbook)
3
appropriate(adjective, correct, exact, superior, unusual)
3
complete(adjective, clear, flat, firm, total)
3
consummate(adjective, clear, complete, total, definite)
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APASmart Define. (2016). certain thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/certain/thesaurus/synonyms
ChicagoSmart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, certain thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>.
MLASmart Define. "certain thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms>