FIERCELY Synonyms: 138 Similar and Opposite Words

fiercely

adverb

ˈfirs-lē

Definition of fiercely

as in extremely

to a great degree fiercely hot weather

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of fiercely Deep into an untypically long agenda, a four-part section promises to be fiercely debated in the basement meeting room at FIFA’s slate and glass headquarters next to Zurich’s zoo. — ABC News, 14 Oct. 2026 To capture an infant orangutan, poachers typically must first kill its mother, who will fiercely defend her young. — Rhea Mogul, CNN Money, 14 Oct. 2026 Dropped by his followers and shunned by his circle, Jim has only Lucien on his side, a skinny and fiercely loyal admirer. — Naman Ramachandran, Variety, 13 Oct. 2026 Saturday is supposed to be a reward for another week of work, which is why Freeman so fiercely defends the right to celebrate all Notre Dame’s wins. — Pete Sampson, New York Times, 11 Oct. 2026 See All Example Sentences for fiercely

Recent Examples of Synonyms for fiercely

Adverb

Some wondered whether Schrödinger’s equation might be an approximation that works extremely well at the microscopic scale but breaks down at the macroscopic scale, which would mean the measurement postulate of the Copenhagen interpretation is right.

— Philipp Strasberg, Scientific American, 20 Oct. 2026
In the meantime, no one should refrain from using sunscreen, which is extremely well-proven to cause cancer.

— Tracy Middleton, Allure, 19 Oct. 2026

Definition of extremely

Adverb

One of the other things that Claude noticed was that these array of associated reverse transcriptases seem to be isolated to jumbo phages, which have very large genomes for bacteriophage.

— Adam Kovac, Scientific American, 14 Oct. 2026
There’s very few cases where a fan actually gets to stand beside the man and add onto the man’s legacy.

— Christine Imarenezor, VIBE.com, 13 Oct. 2026

Definition of very

Adverb

While these issues can be addressed, the costs can be incredibly high, and under Florida law, developers are only on the hook for anything identified within the first seven years after a building is handed over to the homeowners association.

— Denise Hruby, Miami Herald, 19 Oct. 2026
The pre-selection debates about three- or four-loss SEC squads and some team no one actually watches will prove incredibly tiresome, too.

— Tyler Estep, AJC.com, 19 Oct. 2026

Definition of incredibly

Adverb

Another issue is that AI detectors are still not terribly reliable, which Vara addresses in her piece, citing a number of studies to bolster the credentials of Pangram.

— James Folta, Literary Hub, 14 Oct. 2026
Probably nothing too terribly bad, especially since Denver has done it without much offensive consistency.

— Parker Gabriel, Denver Post, 7 Oct. 2026

Definition of terribly

Adverb

Authorities in both countries were investigating the cyber incidents, which exposed vulnerabilities in some older refrigeration management systems and in the countries' highly efficient food supply chains.

— JOHN LEICESTER, Arkansas Online, 15 Oct. 2026
Cell-depleting therapies, which are generally considered highly effective treatments, target and remove specific immune cells.

— Melissa Rudy, FOXNews.com, 14 Oct. 2026

Definition of highly

Adverb

There were some surprises in the rankings, too, with the Fendi Spy bag seeing a 127 percent spike in average resale value amid this year’s Y2K revival.

— Samantha Conti, Footwear News, 14 Oct. 2026
But while fans wait to see what happens, Davies, despite no longer being involved in the show, assured that a new series was definitely happening and there wouldn’t be too long to wait.

— Alex Ritman, Variety, 14 Oct. 2026

Definition of too

Adverb

Trailing the Brewers 2-0 in the best-of-seven series, the Dodgers desperately need to put themselves in the best possible position to win Game 3 and avoid four straight win-or-go-home contests.

— Maddie Lee, Los Angeles Times, 14 Oct. 2026
Wagler is on a Clippers team that is searching, desperately, for someone to take over.

— David Troy OutKick, FOXNews.com, 13 Oct. 2026

Definition of desperately

Adverb

Coordinating all of his department heads and units in prep allowed Vanselow to focus more intensely on performance during the actual shoot, which paid off not only in terms of Neeson’s work but that of the supporting cast.

— Jim Hemphill, IndieWire, 14 Oct. 2026
Zaid’s home is bombed in one intensely melodramatic sequence that culminates in a slow zoom over Zaid cradling his dead wife and child.

— Beatrice Loayza, Variety, 13 Oct. 2026

Definition of intensely

Browse Nearby Words

fierce

fiercely

fierceness

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“Fiercely.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fiercely. Accessed 21 Oct. 2026.

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Synonyms of fiercely

adverb

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