[ fuh-roh-shuhs ]
See synonyms for: ferociousferociouslyferociousness 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.

Origin of ferocious

First recorded in 1640–50; from Latin ferōc-, stem of ferōx “savage, fierce” (fer(us) “wild” (see feral1, fierce) + -ōx “having such an appearance”; akin to eye, oculus, -opsis) + -ious

synonym study For ferocious

1. See fierce.

Other words for ferocious

Other words from ferocious

  • fe·ro·cious·ly, adverb
  • fe·ro·cious·ness, noun
  • non·fe·ro·cious, adjective
  • non·fe·ro·cious·ly, adverb
  • non·fe·ro·cious·ness, noun
  • un·fe·ro·cious, adjective
  • un·fe·ro·cious·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use ferocious in a sentence

British Dictionary definitions for ferocious


/ (fəˈrəʊʃəs) /

  1. savagely fierce or cruel: a ferocious tiger; a ferocious argument

Origin of ferocious

C17: from Latin ferox fierce, untamable, warlike

Derived forms of ferocious

  • ferociously, adverb
  • ferocity (fəˈrɒsɪtɪ) or ferociousness, 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