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.

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

Defeat on Sunday against Barcelona will hand Real's fiercest rivals their second consecutive La Liga title.

From BBC • May 8, 2026

The state’s ousted chief minister, 71-year-old Mamata Banerjee, is one of Prime Minister Narendra Modi’s fiercest adversaries.

From The Wall Street Journal • May 6, 2026

The businessman signed up to fight just before Russia's full-scale invasion – "we all knew war was inevitable" – initially joining the Territorial Defence, then passing through some of the fiercest battles, including for Bakhmut.

From BBC • Apr. 27, 2026

He was the largest of her three, the fiercest, the wildest, with scales as black as night and eyes like pits of fire.

From "A Dance with Dragons" by George R. R. Martin