PERFIDIOUSNESS

Pronunciation (US): (GB):

Meaning:

Betrayal of a trust

Synonyms:

perfidiousness; perfidy; treachery

Classified under:

Nouns denoting attributes of people and objects

Hypernyms ("perfidiousness" is a kind of...):

disloyalty (the quality of being disloyal)

Hyponyms (each of the following is a kind of "perfidiousness"):

insidiousness (the quality of being designed to entrap)

Derivation:

perfidious (tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans)