From Middle English feithles, equivalent to faith + -less.
faithless (comparative more faithless, superlative most faithless)
- Lacking faith; lacking belief in something.
1970, Margaret Wade Campbell Deland, Old Chester Days, page 58:
- "You're so faithless about pills," he said, "that I'm not going to give you any."
- Not believing in God, religion, or a comparable ideology.
- Unfaithful; not of true fidelity; inconstant, as a husband or a wife.
- 1996, Frederick Ahl, Hanna Roisman, The Odyssey re-formed, p. 283:
- Menelaus, who fought to recover his faithless wife, has clearly rooted himself in Sparta for the remainder of his life...
- Not observant of promises or covenants.
- Not true to allegiance, duty, or vows; perfidious; treacherous; disloyal.
- Serving to disappoint or deceive; delusive; unsatisfying.