monstrous  
adjective uk/ˈmɒn.strəs/ us/ˈmɑːn.strəs/
  (BAD)      
  丑恶的;残酷的;骇人听闻的
very cruel
  a monstrous crime 残暴的罪行 
 monstrous cruelty 骇人听闻的残酷行径 
 But that's monstrous - he can't be allowed to get away with it! 但那实在太骇人听闻了——不能让他逍遥法外! 
   (CREATURE)      
 像怪兽的;骇人的
like a monster
  The illustrations show monstrous beasts with bodies like bears and heads like tigers. 这些插图展示了怪异的野兽,它们身体像熊,头部像虎。