faithless
Webster 1828
FA'ITHLESS, adjective 1. Without belief in the revealed truths of religion; unbelieving.O faithless generation. Math 18.2. Not believing; not giving credit to.3. Not adhering to allegiance or duty; disloyal; perfidious; treacherous; as a faithless subject.4. Not true to a master or employer; neglectful; as a faithless servant.5. Not true to the marriage covenant; false; as a faithless husband or wife.6. Not observant of promises.7. Deceptive.Yonder faithless phantom