He was staring at her now, very serious in manner.
Yet there are some things we should be thinking about in a more serious manner.
"This issue needs to be treated in a far more serious manner."
He did it in a most serious and concerned manner.
These offers rarely impact the game in a serious manner.
"I came to hear their essential needs, which will be discussed in a serious manner."
To work with or modify in a not particularly serious manner.
"We must take every step possible to solve this problem in a serious manner."
He never again spoke to his daughter in a serious manner.
And now we have to engage with this in a serious, objective manner.