disloyal
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Synonyms:
perfidious, treacherous Collocations, traitorous, faithless, false Collocations, unfaithful Collocations, backstabbing , subversive, seditious, deceitful Collocations, two-faced, Janus-faced, untrue, cheating , unloyal, fickle Collocations, betraying, untrustworthy, unpatriotic, double-crossing, double-dealing, treasonous