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Word

fierce

adjective C1
UK /fɪəs/
US /fɪːs/

Meanings

adjective

showing strong anger, aggression, or intensity that may frighten others

fierce: showing strong anger, aggression, or intensity that may frighten others
adjective

very intense or powerful (especially about weather, heat, or fire)

fierce: very intense or powerful (especially about weather, heat, or fire)
adjective

very strong and determined; extremely competitive

fierce: very strong and determined; extremely competitive

Definition

Very strong and intense in a way that can be frightening or impressive.

If someone or something is fierce, it shows great intensity, power, or determination. It can describe aggressive anger, strong competition, or extreme natural forces. The word often suggests energy that is hard to control or resist.

Examples

  • The coach demanded fierce concentration during the final minutes of the match.
  • I felt a fierce surge of protectiveness when the stranger grabbed my bag.
  • She faced fierce criticism online but responded with calm, detailed explanations.
  • They entered the debate expecting fierce opposition from the other side.
  • After a fierce storm, the streets were littered with fallen branches.

Common mistake

Learners sometimes use "fierce" to mean simply "strong" or "big" (e.g., "a fierce building"), but it usually implies intensity, aggression, or powerful force.