ferocious

1 ENTRIES FOUND:
ferocious /fəˈroʊʃəs/ adjective
ferocious
/fəˈroʊʃəs/
adjective
Britannica Dictionary definition of FEROCIOUS
[more ferocious; most ferocious]
1 
: very fierce or violent
2 
: very great or extreme

— ferociously

adverb

— ferociousness

noun [noncount]