10
perfectly(adverb, exactly, perfectly, always, plumb)
7
flawlessly(adverb, very, exactly, correctly, perfectly)
6
completely(adverb, perfectly)
6
exactly(adverb, just, severely, closely, precisely)
6
immaculately(adverb, purely)
6
purely(adverb, purely, virtuously)
5
accurately
5
impeccably(adverb, very, correctly, perfectly, splendidly)
4
absolutely(adverb, just, severely, completely, quite)
4
blamelessly(adverb, virtuously)
4
cleanly(adverb, purely, virtuously)
4
precisely(adverb, just, absolutely, completely, exactly)
3
consummately(adverb, very, perfectly, excellently, outstandingly)
3
correctly
3
guiltlessly(adverb, purely, virtuously)
3
ideally
3
innocently(adverb, purely)
3
just right(expression, adverb, exactly, perfectly, plumb)
3
pat(adverb, exactly, perfectly, fittingly)
3
spotlessly(adverb, purely)
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APASmart Define. (2015). faultlessly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/faultlessly/thesaurus/synonyms
ChicagoSmart Define. 2015. "faultlessly thesaurus" https://smartdefine.org/faultlessly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, faultlessly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/faultlessly/thesaurus/synonyms>.
MLASmart Define. "faultlessly thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/faultlessly/thesaurus/synonyms>