fiercely

adverb

fierce·​ly ˈfirs-lē 

1

: in a fierce or vehement manner

fiercely competitive

2

: to a high degree : very

fiercely expensive

Synonyms of fiercely

• extremely
• very
• incredibly
• terribly
• highly
• too
• desperately
• intensely
• damned
• so
• badly
• damn
• severely
• really
• wildly
• seriously
• heavily
• far
• most
• greatly

Examples of fiercely in a Sentence

fiercely hot weather

Recent Examples on the Web

In a place where the past is fiercely preserved, the most ingenious innovations are the ones that don’t announce their arrival. — Kathryn O’Shea-Evans, Robb Report, 16 Aug. 2026

The Championship season begins Friday, with Wolves hosting Blackburn in the opening game of what promises to be another fiercely competitive promotion race. — Dean Jones, New York Times, 14 Aug. 2026

In Elliott’s case, defending his arguments fiercely meant turning to prompt injection to try to force the court to agree with him. — Ashley Belanger, ArsTechnica, 14 Aug. 2026

Over 30 hours, Reagan and Gorbachev fiercely debated in an effort to bring peace and the end of the Cold War. — Barry Levitt, Time, 14 Aug. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1