ferocious
Americanadjective
-
savagely fierce, as a wild beast, person, action, or aspect; violently cruel.
a ferocious beating.
- Synonyms:
- rapacious
-
extreme or intense.
a ferocious thirst.
adjective
Related Words
See fierce.
Other Word Forms
Etymology
Origin of ferocious
First recorded in 1640–50; from Latin ferōc-, stem of ferōx “savage, fierce” ( fer(us) “wild” ( see feral 1, fierce) + -ōx “having such an appearance”; akin to eye ( def. ), oculus ( def. ), -opsis ) + -ious
Explanation
The adjective ferocious means more than merely angry or active. Picture the wildest, most savage animal you can imagine — it's a ferocious beast. Although we most often think of the word ferocious as referring to wild animals, it can also be used to describe anything characterized by an extremely high level of energy or even violence. For example, you might endure ferocious winds during a hurricane and fans at a soccer match often display a ferocious devotion to their team.
Vocabulary lists containing ferocious
A Wrinkle in Time
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Tangerine
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List 10
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The artificial-intelligence trade is the main driver causing investors to pile into semiconductor and tech stocks at such a ferocious pace.
From MarketWatch • May 13, 2026
OpenAI recently missed multiple internal revenue and user targets after facing ferocious competition from its two biggest rivals, Google and Anthropic.
From The Wall Street Journal • May 2, 2026
If Ruben Pallister - the ferocious lead in BBC One drama Half Man - was in a room with any of TV's most brutal creations, you'd back him to leave it alive.
From BBC • Apr. 24, 2026
Now the winner of three Emmy Awards and a slew of other accolades for that series, which he starred in, wrote and served as showrunner, Gadd, 36, has already helmed a new emotionally ferocious show.
From Los Angeles Times • Apr. 23, 2026
Her eyes were ferocious, the deep green of forests; the pupils, dark wells.
From "Six of Crows" by Leigh Bardugo
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
