Intermediate (B1)
IPA: /fɛˈroʊʃəsli/
KK: /fɛˈroʊʃəsli/
Definition
In a way that is very fierce, violent, or aggressive.
Example
The lion roared ferociously as it defended its territory.
Conversation

Did you see how that dog was barking ferociously at the mailman?

Yeah, it was pretty scary! I wouldn't want to get too close to it.

Exactly! It seemed so intense like it wanted to protect its territory.

For sure, some dogs can be ferociously loyal to their owners.
Synonyms & Antonyms
Synonyms
intensely
fiercely
savagely
Root Explanation
Ferociously → It is formed from "ferox" (from Latin, meaning fierce or wild) and the suffix "-iously" (meaning in a manner of). The word "ferociously" means in a fierce or wild manner.
Memory Tip
Think of someone acting in a 'fierce' way ('ferox') — that's why 'ferociously' means to do something in a fierce manner.
Visually Confused Words
veraciously
velociously
unferocious
fractiously
feloniously
atrociously
seriously
heteroeciously