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

• 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

In offseason videos, though, he’s been flying through the air and flushing down ferocious dunks, so the athleticism looks to be back. —Stan Son, New York Times, 7 Oct. 2025

While the competition among the major media groups in Europe can be ferocious, Bassetti has earned the respect of his peers. —Elsa Keslassy, Variety, 6 Oct. 2025

In a competition bear-ly more ferocious, 12 chunky brown bears in Alaska’s Katmai National Park and Preserve have been battling it out in one of the most cutthroat places on the planet – the internet. —Lilit Marcus, CNN Money, 1 Oct. 2025

As obligate carnivores with ferocious teeth, big cats were both motivated and equipped to rip primates to shreds. —Rebecca Van Laer september 30, Literary Hub, 30 Sep. 2025

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