formidably

adv

1. In a formidable manner.

   “The black-muzzled, tawny dog, a glimpse of which was seen in the chapter which first introduced its mistress to the reader, here gave tongue in the hall, amidst whose hollow space the deep bark resounded formidably.”

   “But the Inspector was made of stern stuff. He closed his right hand and with the resulting fist pounded formidably on the bronze.”