fiercely

adverb

fierce·​ly ˈfirs-lē 

1

: in a fierce or vehement manner

fiercely competitive

2

: to a high degree : very

fiercely expensive

Synonyms

• achingly
• almighty
• archly
• awful
• awfully
• badly
• beastly
• blisteringly
• bone
• colossally
• corking
• cracking
• damn
• damned
• dang
• deadly
• desperately
• eminently
• enormously
• especially
• ever
• exceedingly
• exceeding
• extra
• extremely
• fabulously
• fantastically
• far
• filthy
• frightfully
• full
• greatly
• heavily
• highly
• hugely
• immensely
• incredibly
• intensely
• jolly
• majorly
• mightily
• mighty
• monstrous [chiefly dialect]
• mortally
• most
• much
• particularly
• passing
• rattling
• real
• really
• right
• roaring
• roaringly
• seriously
• severely
• so
• sore
• sorely
• spanking
• specially
• stinking
• such
• super
• supremely
• surpassingly
• terribly
• that
• thumping
• too
• unco
• uncommonly
• vastly
• very
• vitally
• way
• whacking
• wicked
• wildly

Examples of fiercely in a Sentence

fiercely hot weather

Recent Examples on the Web

As one of the last remaining breeds bred for the specific purposes of sledding and hunting, its genetic purity is fiercely protected. —Katherine Alex Beaven, Smithsonian Magazine, 21 May 2025

After Russia claimed to have retaken control of Kursk in April, Kyiv insisted its troops are fiercely battling to preserve their foothold in the territory. —Lex Harvey, CNN Money, 21 May 2025

The Virginia congressman fiercely defended government workers in the wake of President Donald Trump’s election as the Administration sought to cut federal funding and employees. —Chantelle Lee, Time, 21 May 2025

The Los Angeles Dodgers have the third-best record in all of baseball and a lead in the fiercely competitive National League West division, but apparently that is not good enough. —Peter Chawaga, MSNBC Newsweek, 20 May 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1