English Explanatory Dictionary

perfidiousness

English dictionary entry

Meanings

noun
  1. Unfaithfulness; deceitfulness; perfidy.

Word forms

perfidiousness perfidiousnesses

Etymology

From perfidious + -ness.

Synonyms

double-dealing treachery treacherousness betrayal breach of promise breach of trust Judas kiss perfidiousness perfidy prodition Punic faith stab in the back swike tergiversation traitory treason

Related words

perfidious perfidiously
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