irreproachable
UK: ˌɪrɪˈprəʊtʃəbl | US: ˌɪrɪˈproʊtʃəbl
adj. free from blame or criticism; faultless
The word "irreproachable" combines the negative prefix "ir-" (variant of "in-" before "r"), the root "reproach" (from Old French reprochier, meaning "to blame"), and the suffix "-able" (indicating capability). Literally, it means "not capable of being blamed." The term evolved in English to describe someone or something beyond criticism, reflecting moral or behavioral perfection.
Her conduct during the crisis was irreproachable.
The judge maintained an irreproachable reputation throughout his career.
Their service is irreproachable, with no complaints from customers.
He strives to live an irreproachable life, adhering to strict principles.
The audit revealed an irreproachable financial record.