alienated, apostate, collaborative, deceitful, derelict, disaffected, estranged, faithless, false, fickle, heretical, inconstant, not true to, of bad faith, perfidious, recreant, renegade, subversive, tergiversant, tergiversating, traitorous, treacherous, treasonable, treasonous, trothless, unfaithful, unloyal, unsteadfast, untrue, untrustworthy