traitorousness

What Is Perfidiousness? faithless, false, disloyal, traitorous, treacherous, perfidious mean untrue to what should command one’s fidelity or allegiance. faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty. What is perfidious person? adjective. deliberately faithless; treacherous; deceitful: a perfidious lover. Is Perfidiousness a word? Betrayal, especially