Answer: impeccable

AnswerCrossword Clue
IMPECCABLEFlawless
IMPECCABLEBeyond reproach
IMPECCABLEFaultless.
IMPECCABLEWithout fault or error
impeccablefaultless, flawless
impeccable(of behavior, performance, or appearance) In accordance with the highest standards of propriety; faultless
impeccableNot liable to sin