faithless.
Lacking faith; lacking belief in something.
Meaning & usage
Lacking faith; lacking belief in something.
Not believing in God, religion, or a comparable ideology.
Unfaithful (said of people, towards their partners)
Not observant of promises or covenants.
Not true to allegiance, duty, or vows
Serving to disappoint or deceive
Where this word comes from
From Middle English feithles, equivalent to faith + -less.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.