[fuh-loh-nee-uh s]


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

Origin of felonious

1375–1425; felony + -ous; replacing late Middle English felonous < Anglo-French, Old French
Related formsfe·lo·ni·ous·ly, adverbfe·lo·ni·ous·ness, nounnon·fe·lo·ni·ous, adjectivenon·fe·lo·ni·ous·ly, adverbnon·fe·lo·ni·ous·ness, nounun·fe·lo·ni·ous, adjectiveun·fe·lo·ni·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for felonious

base, corrupt, evil, illegal, illicit, villainous, wrongful

Examples from the Web for felonious

Contemporary Examples of felonious

  • The focus is on the felonious, or nearly so, but some ladies aren't above cataloging bad breath and B.O.

    The Daily Beast logo
    Online Dating Just Got Weirder

    Laura Van Straaten

    February 13, 2009

Historical Examples of felonious

  • The fact that the shooting is felonious does not make it any more likely to kill people.

    The Common Law

    Oliver Wendell Holmes, Jr.

  • The suit was by way of appeal; the cause of action, a felonious trespass.

    The Common Law

    Oliver Wendell Holmes, Jr.

  • He might be with this felonious lot, but he wouldn't be of them.

    Ravensdene Court

    J. S. (Joseph Smith) Fletcher

  • I wasn't tryin' to break into the army with felonious intent.

  • Mr. Hutton started, as though he had been taken in some felonious act.

    Mortal Coils

    Aldous Huxley

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