[fuh-loh-nee-uh s]


Law. pertaining to, of the nature of, or involving a felony: felonious homicide; felonious intent.
wicked; base; villainous.

Nearby words

  1. fellowship,
  2. felly,
  3. felo de se,
  4. felo-de-se,
  5. felon,
  6. feloniously,
  7. felonry,
  8. felony,
  9. felony murder,
  10. felsic

Origin of felonious

1375–1425; felony + -ous; replacing late Middle English felonous < Anglo-French, Old French

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for felonious

British Dictionary definitions for felonious



criminal law of, involving, or constituting a felony
obsolete wicked; base
Derived Formsfeloniously, adverbfeloniousness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for felonious



mid-15c. (implied in feloniously), from felony + -ous. Replaced felonous (mid-14c.) by c.1600. Felonly (c.1300) was another variation.

Online Etymology Dictionary, © 2010 Douglas Harper