Perfidious, treacherous, faithless.
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: double-dealing, infidelitous, ratlike, booky, dastardly, disleal, disloyal, double-crossing, double-faced, double-hearted, doublehearted, faithless, false, falseheart, false-hearted, guiled, guileful, hollow-hearted, illoyal, insidious, Judaslike, Judasly, nonfaithful, perfidious, proditorious, proditory, Punic, recreant, renegade, reptilian, reptitious, swike, traitorish, traitorlike, traitorly, traitorous, traitorsome, treacherous, treachersome, trothless, unfaithful, unleal, unloyal, unsteadfast, untrue, viperish, viperous
Antonyms: none provided