1. in a serious manner

- a play dealing seriously with the question of divorce

Similar word(s): earnestly

2. to a severe or serious degree

- was seriously ill

Similar word(s): badly, gravely, severely

Sentences with seriously as an adverb:

- He was hoping that we would take him seriously.

- Jimmy jokingly called Bob a doofus. Bob took the insult seriously.

- Now, seriously, why did you forget to feed the cat today?

- You baked 10 cakes. Seriously, why did you do that?