perfidious(adjective satellite) 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"
Source:
WordNet 2.0 Copyright 2003 by Princeton University. All rights reserved.
Look up this word at:
(Dictionary.com |
Thesaurus.com)