ferocious; fierce; truculent; savage
獰猛な犬に激しく吠えられた。
I was barked at fiercely by a ferocious dog.
獰猛な野生のライオンが獲物に襲いかかる。
A ferocious wild lion pounces on its prey.
その犬は見た目こそ獰猛だが、実は人懐っこい性格だ。
The dog only looks ferocious — in truth, it has a friendly personality.