Found 2 items, similar to perfidious.
English → English (WordNet) Definition: perfidious perfidious adj : tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans; “Punic faith”; “the perfidious Judas”; “the fiercest and most treacherous of foes”; “treacherous intrigues” [syn: punic, treacherous]
English → English (gcide) Definition: Perfidious Perfidious \Per*fid"i*ous\ (p[~e]r*f[i^]d"[i^]*[u^]s; 277), a. [L. perfidious.] 1. Guilty of perfidy; violating good faith or vows; false to trust or confidence reposed; teacherous; faithless; as, a perfidious friend. --Shak. [1913 Webster] 2. Involving, or characterized by, perfidy. “Involved in this perfidious fraud.” --Milton. [1913 Webster]