Emily Dickinson Lexicon

FAITH'LESS, a.

1. Without belief in the revealed truths of religion; unbelieving. O faithless generation. Matth. xvii.
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. Goldsmith.