বিশ্বাসহীন, বিশ্বাসঘাতক, অবিশ্বাসী, অবিশ্বস্ত
(1) Tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans
(2) Tending to betray
(3) Treacherous
(1) If anyone in history has ever emitted a bigger pile of oozing, sanctimonious, unctuous, fetid, perfidious , malodorous offal than this, I'd like to know what it could possibly be.
(2) U251cu00f6u251cu00e7u251cu2510Albion has never seemed so perfidious or so lucky,u251cu00f6u251cu00e7u251cu00fb the article begins.
(3) The cause of these antinomies is language, for language, being a useful tool, is also a self-locking instrument - and at the same time a perfidious one, since it tells nothing about when it becomes a pitfall itself.
(4) I refer, of course, not to the evil, perfidious nature of corporate governance because, let's face it, we're all too cowed and defenceless to complain, but to badly dubbed television commercials.
(5) She is indifferent, negligent, unfeeling, untrustworthy, and perfidious .
treacherous
duplicitous
deceitful
disloyal
faithless
unfaithful
traitorous
treasonous
false-hearted
double-dealing
two-faced
Janus-faced
untrustworthy
constant
dedicated
devoted
devout
faithful
fast
loyal
steadfast
steady