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perfidiousness

 - 2 dictionary results

per⋅fid⋅i⋅ous

  [per-fid-ee-uhs]
Use perfidiousness in a Sentence
–adjective
deliberately faithless; treacherous; deceitful: a perfidious lover.
Origin:
1590–1600; < L perfidiōsus faithless, dishonest. See perfidy, -ous

Related forms:
per⋅fid⋅i⋅ous⋅ly, adverb
per⋅fid⋅i⋅ous⋅ness, noun

Synonyms:
false, disloyal; unfaithful, traitorous.

Antonyms:
faithful.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To perfidiousness
perfidiousness

noun
betrayal of a trust [syn: perfidy] 
WordNet® 3.0, © 2006 by Princeton University.
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