Part of speech:
Characterized by unforeseen or hidden hazards; dangerous or deceptive:
(Slang) Hard to cope with; difficult or troublesome:
Morally unsound or debased; perverted; evil; depraved
Sir T. North
Tending to deceive; apt to lie or cheat
Resentful and rebellious, especially against authority.
Uttering falsehood; dishonest or deceitful.
Having the appearance of someone dishonest, criminal or unreliable; such as someone with shifty eyes.
Of or involving treason; treasonable
Not having religious faith
Not faithful or loyal
Characterized by corrupt dealings, especially bribery:
Not true to duty or obligation
Managing for an owner; acting as trustee
Having the character of treachery attributed to the Carthaginians by the Romans.
Find another word for perfidious. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for perfidious, like: treacherous, mean, corrupt, faithless, dishonest, deceitful, disaffected, disloyal, false, shifty and traitorous.