seriously in WordNet English dictionary

1. to 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"
   badly  severely  gravely  seriously  badly  severely  gravely  seriously 
   
2. in a serious manner
   "talking earnestly with his son"; "she started studying snakes in earnest"; "a play dealing seriously with the question of divorce"
   seriously  earnestly  in earnest  seriously  earnestly  in earnest 
   

seriously in English Wiktionary