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Definition of perfidious - 2 dictionary results

per⋅fid⋅i⋅ous

[per-fid-ee-uhs]
–adjective
deliberately faithless; treacherous; deceitful: a perfidious lover.

Origin:
1590–1600; < L perfidiōsus faithless, dishonest. See perfidy, -ous


per⋅fid⋅i⋅ous⋅ly, adverb
per⋅fid⋅i⋅ous⋅ness, noun


false, disloyal; unfaithful, traitorous.


faithful.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To perfidious
per·fid·i·ous   (pər-fĭd'ē-əs)   
adj.  Of, relating to, or marked by perfidy; treacherous. See Synonyms at faithless.
per·fid'i·ous·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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