infallibile angolul

faultless▼(without fault)
adjective
[UK: ˈfɔːlt.ləs] [US: ˈfɔːlt.ləs]

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