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See more synonyms for ferocious on Thesaurus.com
  1. savagely fierce, as a wild beast, person, action, or aspect; violently cruel: a ferocious beating.
  2. extreme or intense: a ferocious thirst.
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Origin of ferocious

1640–50; < Latin ferōc-, stem of ferōx savage, fierce (fer(us) wild (see feral1, fierce) + -ōx having such an appearance; akin to -opsis) + -ious
Related formsfe·ro·cious·ly, adverbfe·ro·cious·ness, nounnon·fe·ro·cious, adjectivenon·fe·ro·cious·ly, adverbnon·fe·ro·cious·ness, nounun·fe·ro·cious, adjectiveun·fe·ro·cious·ly, adverb


See more synonyms for on Thesaurus.com
1. rapacious. See fierce.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for ferociousness

Historical Examples

  • You are radically polite; this impetuosity and ferociousness is simply the sincerity which is the basis of a proper deportment.

    The Luck of Roaring Camp and Other Tales

    Bret Harte

  • The brutality of the police, equalled in ferociousness the massacre of the Yeomanry Cavalry.

    The Battle of The Press

    Theophila Carlile Campbell

  • There was ferociousness in the heart of the Indian, but Grace's voice had stayed his hand.

  • His personal misfortunes will prove the anarchy of the government and the ferociousness of the times.

  • There was a fascination in his manner that made the ferociousness of his antagonist subside into impotence.

    Caleb Williams

    William Godwin

British Dictionary definitions for ferociousness


  1. savagely fierce or cruela ferocious tiger; a ferocious argument
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Derived Formsferociously, adverbferocity (fəˈrɒsɪtɪ) or ferociousness, noun

Word Origin

C17: from Latin ferox fierce, untamable, warlike
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 ferociousness



1640s, from Latin ferocis, oblique case of ferox "fierce, wild-looking" (see ferocity). Related: Ferociously; ferociousness.

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Online Etymology Dictionary, © 2010 Douglas Harper