perfidious

As adjectives the difference between incontinent and perfidious

is that incontinent is unable to contain or retain while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As a noun incontinent

is one who is unchaste.

As adjectives the difference between violent and perfidious

is that violent is involving extreme force or motion while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As a verb violent

is (archaic) to urge with violence.

As a noun violent

is (obsolete) an assailant.

As adjectives the difference between perverse and perfidious

is that perverse is turned aside; hence, specifically, turned away from the (morally) right; willfully erring; wicked; perverted while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between perfidious and crafty

is that perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance while crafty is relating to, or characterized by, craft or skill; dexterous.

As adjectives the difference between perfidious and dastard

is that perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance while dastard is meanly shrinking from danger, cowardly, dastardly.

As a noun dastard is

a malicious coward; a dishonorable sneak.

As a verb dastard is

to dastardize.

As adjectives the difference between perfidious and perfunctory

is that perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance while perfunctory is done merely to discharge a duty; performed mechanically and as a thing of rote; done in a careless and superficial manner; characterized by indifference; as, perfunctory admonitions; aspiring only to minimum standards.

As adjectives the difference between opprobrious and perfidious

is that opprobrious is of or relating to opprobrium while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between treasonable and perfidious

is that treasonable is involving or constituting treason while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between somnambulant and perfidious

is that somnambulant is walking as if, or while, asleep; sleepwalking while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between convivial and perfidious

is that convivial is of or relating to a feast or entertainment, or to eating and drinking, with accompanying festivity; festive; social; gay; jovial while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.