Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
perfidy | Yes | No | No | No |
insidiousness | Yes | No | No | No |
perfidy (noun) | insidiousness (noun) |
---|---|
an act of deliberate betrayal | subtle and cumulative harmfulness (especially of a disease) |
betrayal of a trust | the quality of being designed to entrap |