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.

U.S. tech firms have faced some of the fiercest responses in India, where data-center capacity is forecast to grow fivefold to roughly 10 gigawatts over roughly the next five years, according to Morgan Stanley.

From The Wall Street Journal • May 28, 2026

While the trial was under way, SpaceX announced a deal to lease computing power to OpenAI’s fiercest rival, Anthropic, which had found itself constrained after its Claude Code product took off.

From The Wall Street Journal • May 16, 2026

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

From BBC • May 8, 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

And my body howled out loud, with my face raised to the sky, the fiercest, scariest yell I didn’t even know I had in me.

From "Ida B" by Katherine Hannigan