Faithless

a.	1.	Not believing; not giving credit. Be not faithless, but believing. - John xx. 27.
	2.	Not believing on God or religion; specifically, not believing in the Christian religion.
	3.	Not observant of promises or covenants.
	4.	Not true to allegiance, duty, or vows; perfidious; trecherous; disloyal; not of true fidelity; inconstant, as a husband or a wife. A most unnatural and faithless service. - Shak.
	5.	Serving to disappoint or deceive; delusive; unsatisfying.

Adj.

1.

faithless - deliberately and abominably disloyal or likely to betray trust or confidence; "the faithless Benedict Arnold"; "a lying traitorous insurrectionist" Synonyms: traitorous, unfaithful

To dream that you lover is faithless, has an opposite meaning that your lover is faithful and foretells of a happy marriage. To dream that you friends are faithless, denotes that you are held in high regards and worthy esteem by them.Machiavellian, agnostic, ambidextrous, apostate, artful, atheist, atheistic, capricious, changeable, changeful, collaborative, conscienceless, crafty, creedless, crooked, cunning, deceitful, derelict, disaffected, disbelieving, dishonest, disloyal, double, double-dealing, double-faced, double-minded, double-tongued, doublehearted, doubting, duplicitous, false, false-principled, falsehearted, fickle, fluctuating, freethinking, heathen, heretical, hypocritical, inconstant, incredulous, infidel, infidelic, insincere, irreligious, minimifidian, nonbelieving, not true to, nullifidian, of bad faith, pagan, perfidious, recreant, renegade, repudiative, sceptical, shifting, shifty, tergiversant, tergiversating, traitorous, treacherous, treasonable, treasonous, trothless, two-faced, unbelieving, unchristian, unconfident, unconverted, unconvinced, unfaithful, unloyal, unreliable, unscrupulous, unstable, unsteadfast, untrue, untrustworthy, wavering, without faith