[adverb]If you take a subject, situation or person seriously you consider it or them to be important and worth a lot of attention or respect.The police have to take any terrorist threat seriously.You don't take anything seriously, do you? It's all one big joke to you.She's sick of being seen as a sex symbol and wants to be taken seriously as an actress.These young actors take themselves so seriously!
SERIOUSLY
Meaning of SERIOUSLY in English
Cambridge English vocab. Кембриджский английский словарь. 2012