infallible(without fault or weakness; incapable of error or fallacy) adjective [UK: ɪn.ˈfæ.ləb.l̩] [US: ˌɪn.ˈfæ.ləb.l̩]Nobody's infallible. = Nadie es infalible.
infaliblemente adverb
infallibly(in an infallible manner) adverb [UK: infal.li.bi] [US: infal.li.bi]