"faithless" in German faithless treulos untreu unzuverlässig Detailed translations for "faithless" faithless 1. to faithless(also: unfaithful, disloyal) treulos How faithless and fickle. Source: opensubtitles.org Corpus by OPUS Request review Wie treulos und unbeständig. faithless untreu{adjectiv} 2. other faithless(also: unreliable, untrustworthy, untrusty, flaky) unzuverlässig{adjectiv} English synonyms for "faithless" faithless {s} traitorous treasonable treasonous unfaithful