adjective. undefined

adjective. Not true to duty or obligation; disloyal or unfaithful.

adjective. Breaking trust in a marriage or relationship by having sexual relations with someone other than one's spouse or sexual partner.

adjective. Having no religious faith.

Without faith or belief; not giving credit; unbelieving; especially, without religious faith or faith in the Christian religion; skeptical.

Without faithfulness or fidelity; not keeping faith; not adhering to allegiance, vows, or duty; disloyal: as, a faithless subject; a faithless servant; a faithless husband or wife.

Tending to disappoint or deceive; deceptive; delusive.

Synonyms and False, untruthful, perfidious, treacherous.

adjective. Not believing; not giving credit.

adjective. Not believing on God or religion; specifically, not believing in the Christian religion.

adjective. Not observant of promises or covenants.

adjective. Not true to allegiance, duty, or vows; perfidious; trecherous; disloyal; not of true fidelity; inconstant, as a husband or a wife.

adjective. Serving to disappoint or deceive; delusive; unsatisfying.

adjective. Lacking faith; lacking belief in something.

adjective. Not believing in God, religion, or a comparable ideology.

adjective. Unfaithful; not of true fidelity; inconstant, as a husband or a wife.

adjective. Not observant of promises or covenants.

adjective. Not true to allegiance, duty, or vows; perfidious; treacherous; disloyal.

adjective. Serving to disappoint or deceive; delusive; unsatisfying.

adjective. having the character of, or characteristic of, a traitor

"Occasionally, what's called a faithless elector votes for somebody else."

disloyal  

faithless elector  faithlessly  faithlessness  

avaricious  bloodthirsty  covetous  deceitful  dishonest  

Machiavellian  agnostic  ambidextrous  apostate  artful