perfidy

Meaning

1. A state or act of violating faith or allegiance; violation of a promise or vow, or of trust.
2. An illegitimate act of deception, such as using symbols like the Red Cross or white flag in a false claim of surrender to gain proximity to an enemy for purposes of attack.
3. A state or act of deceit.

Synonyms

treachery

betrayal

treason

disloyalty

infidelity

sellout

perfidiousness

unfaithfulness

defection

treacherousness

disingenuousness

deceit

deceitfulness

faithlessness

fraudulence

guile

indirection

insidiousness

insincerity

fraud in fact

falseness

falsity

frame-up

fraud

snakiness

traitorousness

gyp

immorality

impropriety

false pretence

deceptiveness

injustice

false pretense

positive fraud

misconduct

mistrust

deception

craftiness

sham

shiftiness

sneakiness

stratagem

subversiveness

chicanery

cheat

breach of trust

treasury

unbelief

underhandedness

betraying

unjust

wile

wiles

dishonesty

discredit

disbelief

distrust

double-dealing

duplicity

Pronounced as (IPA)

/ˈpɜː.fɪ.di/

Etymology

From Middle French perfidie, from Latin perfidus (“faithless, treacherous, false”), from fides (“faith”); related to, for example, English fidelity.