ferocious

adjective

fe·​ro·​cious fə-ˈrō-shəs 

1

: exhibiting or given to extreme fierceness and unrestrained violence and brutality

a ferocious predator

the ferocious butchery of women and children

2

: extremely intense

ferocious heat

The competition among the students was ferocious.

ferociously adverb

ferociousness noun

Synonyms of ferocious

• intense
• fierce
• intensive
• terrible
• furious
• deep

Choose the Right Synonym for ferocious

fierce, ferocious, barbarous, savage, cruel mean showing fury or malignity in looks or actions.

fierce applies to humans and animals that inspire terror because of their wild and menacing aspect or fury in attack.

fierce warriors

ferocious implies extreme fierceness and unrestrained violence and brutality.

a ferocious dog

barbarous implies a ferocity or mercilessness regarded as unworthy of civilized people.

barbarous treatment of prisoners

savage implies the absence of inhibitions restraining civilized people filled with rage, lust, or other violent passion.

a savage criminal

cruel implies indifference to suffering and even positive pleasure in inflicting it.

the cruel jokes of schoolboys

Examples of ferocious in a Sentence

A ferocious wind swept the beach.

The competition among the students was ferocious.

Recent Examples on the Web

Rice responded with a ferocious uppercut, pulling a 381-foot, go-ahead homer to right. —Gary Phillips, New York Daily News, 14 June 2026

Spielberg's excellent take on the Invasion of Normandy was groundbreaking in its graphic depictions of the battlefield but especially for its ferocious knockout of an opening. —Brian Truitt, USA Today, 13 June 2026

The semiconductor equipment maker rose nearly 13% on Thursday alone after Oracle's capital spending outlook in its latest earnings report highlighted ferocious demand for chips. —Davis Giangiulio, CNBC, 13 June 2026

This majestic sequence delivers a lifetime’s outpouring of love’s inadequacies and frustrations, of grief and regret, of gratitude along with candid acceptance of loss, and of self-questioning that never shakes the foundations of the family—her ferocious commitment to the children. —Richard Brody, New Yorker, 12 June 2026

Word History

Etymology

Latin feroc-, ferox, literally, fierce looking, from ferus + -oc-, -ox (akin to Greek ōps eye) — more at eye

First Known Use

1646, in the meaning defined at sense 1

Rhymes for ferocious

• atrocious
• precocious

Kids Definition

ferocious

adjective

fe·​ro·​cious fə-ˈrō-shəs 

1

: fierce sense 1, savage

2

: very great : extreme

ferocious heat

ferociously adverb

ferociousness noun

ferocity

fə-ˈräs-ət-ē

noun