n. 25B6; noun UNFAITHFULNESS, infidelity, inconstancy, faithlessness, fickleness, unreliability, untrustworthiness, betrayal, falseness; duplicity, double-dealing, treachery, treason, subversion, sedition, dissidence; adultery; informal back-stabbing, two-timing; poetic/literary perfidy, perfidiousness.
DISLOYALTY
Meaning of DISLOYALTY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012