"This ramen is seriously spicy!"

Translation: 이 라면은 엄청 매워요!

[JuHyunLee5]

No. Only for the way for saying 'extremely' or 'very'. 진지한 (serious) is for when you want to say like, "you need to be 'serious'".

[dagummace]

Does this also have anything to do with "serious"? Or is it more of a way of saying "extremely"?

[wintertriangles]

extremely