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ng good faith or vows; false to trust or confidence reposed; teacherous; faithless; as, a perfidious friend. Shak.

In a perfidious manner.

The quality of being perfidious; perfidy. Clarendon.

Disloyal; perfidious. [Obs.] "Disleal knight." Spenser.

Not true to allegiance, duty, or vows; perfidious; trecherous; disloyal; not of true fidelity; inconstant, as a husband or a wife. A most unnatural and faithless service. Shak.

Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous; perfidious; as, a false friend, lover, or subject; false to promises. I to myself was false, ere thou to me. Milton.

Hollow or unsound at the core; treacherous; deceitful; perfidious. Bacon. -- False"*heart`ed*ness, n. Bp. Stillingfleet.

In a false manner; erroneously; not truly; perfidiously or treacherously. "O falsely, falsely murdered." Shak. Oppositions of science, falsely so called. 1 Tim. vi. 20. Will ye steal, murder . . . and swear falsely Jer. vii. 9.

Having the quality of felony; malignant; malicious; villainous; traitorous; perfidious; in a legal sense, done with intent to commit a crime; as, felonious homicide. O thievish Night, Why should'st thou, but for some felonious end, In thy dark lantern thus close up the stars Milton. -- Fe*lo"ni`ous*ly, adv. -- Fe*lo"n…

Treacherous; perfidious; traitorous. [Obs.] Daniel.

To set down, as in writing. [Obs.] "He's quoted for a most perfidious slave." Shak.

Guilty of treason; treacherous; perfidious; faithless; as, a traitorous officer or subject. Shak.

g treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless. Loyal father of a treacherous son. Shak. The treacherous smile, a mask for secret hate. Cowper.

Violation of allegiance or of faith and confidence; treasonable or perfidious conduct; perfidy; treason.

to promises, to a prince, or the like; unwavering; faithful; loyal; not false, fickle, or perfidious; as, a true friend; a wife true to her husband; an officer true to his charge. Thy so true, So faithful, love unequaled. Milton. Dare to be true: nothing can need a lie. Herbert.

rvant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious; as, an unfaithful subject; an unfaithful agent or servant. My feet, through wine, unfaithful to their weight. Pope. His honor rooted in dishonor stood, And faith unfaithful kept him falsely true. Tennyson.…

ld. Happy is she that from the world retires. Waller. If knowledge of the world makes man perfidious, May Juba ever live in ignorance. Addison.