UNTAINTED

stainless, unstained, unsullied, untainted, untarnished

(adjective) (of reputation) free from blemishes; “his unsullied name”; “an untarnished reputation”

Source: WordNet® 3.1

Etymology

Adjective

untainted (comparative more untainted, superlative most untainted)

Not tainted; free of contamination; pure.

The master of [the Bell public house] is brother to the great preacher Whitefield; but is absolutely untainted with the pernicious principles of Methodism, or of any other heretical sect.

Source: Wiktionary