непогрешимый znamená v Angličtina

impeccable▼(Incapable of wrongdoing or sin; immaculate)
adjective
[UK: ɪm.ˈpek.əb.l̩] [US: ˌɪm.ˈpek.əb.l̩]

infallible▼(without fault or weakness; incapable of error or fallacy)
adjective
[UK: ɪn.ˈfæ.ləb.l̩] [US: ˌɪn.ˈfæ.ləb.l̩]