Main Entry: fe·lo·ni·ous

Pronunciation: \fə-ˈlō-nē-əs\

Function: adjective

Date: 1567

1 archaic : very evil : villainous
2 : of, relating to, or having the nature of a felony <felonious assault>

— fe·lo·ni·ous·ly adverb

— fe·lo·ni·ous·ness noun