(r)seriously, earnestly, in earnestin a serious manner“talking earnestly with his son”, “she started studying snakes in earnest”, “a play dealing seriously with the question of divorce”
(r)badly, severely, gravely, seriouslyto a severe or serious degree“fingers so badly frozen they had to be amputated”, “badly injured”, “a severely impaired heart”, “is gravely ill”, “was seriously ill”