brutally vs grossly

brutally

adv
  • In a brutal manner; viciously, barbarically. 

  • Extremely. 

  • In a direct way that does not attempt to hide, disguise or mask unpleasantness; directly. 

grossly

adv
  • To a serious, severe, or offensive degree. 

  • Greatly; to a large degree, especially one large enough to be frankly appreciable. 

  • In a gross (disgusting) manner; without delicacy. 

How often have the words brutally and grossly occurred in a corpus of books? (source: Google Ngram Viewer )