fiercest

ADJECTIVE

violent, menacing

Synonyms

STRONGEST

angry bold brutal cutthroat dangerous ferocious fiery furious intense murderous passionate powerful raging relentless savage stormy strong terrible vehement vicious

WEAK

animal ape awful barbarous bloodthirsty blustery boisterous brutish cruel enraged fell feral flipped frightening horrible howling impetuous infuriated malevolent malign primitive raving tempestuous threatening tigerish truculent uncontrollable untamed venomous wild

Antonyms

STRONGEST

apathetic calm cold cool dull gentle good happy indifferent kind mild moderate nice pleasant quiet tame uncaring weak

WEAK

meek nonviolent peaceful tender unthreatening

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.

There was testimony from the world’s richest man and his fiercest rivals, corporate secrets, candid emails, unforgettable texts and seminal documents that show what really happened over the past decade.

From The Wall Street Journal • May 18, 2026

Ukrainian marine Yaroslav Rumyantsev was taken prisoner in Mariupol in May 2022 when, after one of the fiercest battles of the war, troops holed up in the Azovstal plant were forced to surrender.

From Barron's • May 8, 2026

On the face of it, crossing between camps in one of rugby's oldest and fiercest rivalries might strain respect.

From BBC • Apr. 25, 2026

The fiercest subject of debate has been around whether to allow plants if they are well-watered.

From Los Angeles Times • Apr. 25, 2026

They stood in long lines outside recruitment offices, hoping they’d be able to join the Red Army and immediately get sent where the fighting was fiercest.

From "A Thousand Sisters" by Elizabeth Wein