faithless
adjEtymology From Middle English feithles, equivalent to faith + -less.
1
Lacking faith; lacking belief in something.
- "You're so faithless about pills," he said, "that I'm not going to give you any."1970, Margaret Wade Campbell Deland, Old Chester Days, page 58:
2
Not believing in God, religion, or a comparable ideology.
3
Unfaithful (said of people, towards their partners)
- Menelaus, who fought to recover his faithless wife, has clearly rooted himself in Sparta for the remainder of his life […]1996, Frederick Ahl, Hanna Roisman, The Odyssey re-formed, page 283:
4
Not observant of promises or covenants.
5
Not true to allegiance, duty, or vows
6
Serving to disappoint or deceive
- Derived terms
- faithless elector, faithlessly, faithlessness, interfaithless