猛 fierce

He's MORE fierce than a , um, some kind of fierce guy.

The fierce cat ate the child on a plate.

fierce ★★☆☆☆
猛 (fierce) + 烈 (violently intense) = 猛烈 (fierce )

severe, violent, terrible, fierce -

Unlike the related word 強烈（きょうれつ）、　もうれつ is usually used about natural phenomena: a fierce storm; a violent wild-fire. The toboggan moving at a scary intense velocity downhill. Also can be used with emotions: A violent argument after someone got caught cheating.

fiercely--XXX ★☆☆☆☆ PRE

PREFIX, meaning fiercely XXX (i.e.　猛反対：fiercely against)