Faithless

[feyth-lis] /ˈfeɪθ lɪs/

adjective
1.
not adhering to allegiance, promises, vows, or duty:
the faithless behavior of Benedict Arnold.
2.
not trustworthy; unreliable.
3.
without trust or belief.
4.
being without religious faith.
5.
(among Christians) bereft of Christian faith.
/ˈfeɪθlɪs/
adjective
1.
unreliable or treacherous
2.
dishonest or disloyal
3.
having no faith or trust
4.
lacking faith, esp religious faith
adj.

c.1300, “unbelieving,” from faith + -less. Meaning “insincere” is mid-14c. Related: Faithlessly; faithlessness.

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