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Synonyms

fiercely

American  
[feers-lee] / ˈfɪərs li /

adverb

  1. in a menacing, violent, or forceful way.

    The bear stood on his back paws, growling fiercely.

    Currently, some 20 wildfires are raging fiercely through the state.

  2. in an eager or intense way.

    Isaiah has developed into a fiercely competitive soccer player.


Other Word Forms

  • overfiercely adverb
  • unfiercely adverb

Etymology

Origin of fiercely

fierce ( def. ) + -ly

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.

While the broader tech industry fiercely debates whether the future of AI lies in transformers, diffusion models, or newer concepts, PrismML’s mathematical framework can be applied to any of them, according to Hassibi.

From The Wall Street Journal • Mar. 31, 2026

After the airstrikes that killed Ayatollah Ali Khamenei, Iranian-Canadian Salar Gholami went to a rally in a Toronto suburb to celebrate the downfall of a leader he fiercely opposed.

From Barron's • Mar. 27, 2026

Pep Guardiola's wild run and dance down Wembley's touchline demonstrated the hunger for success remains and his competitive fire still burns as fiercely as ever.

From BBC • Mar. 22, 2026

The banking industry has fiercely criticized the idea of a cap.

From MarketWatch • Mar. 19, 2026

He was a fiercely attacking player, but at the board he’d often seem as if in a trance.

From "Endgame" by Frank Brady