in all seriousness

成語所屬單字seriousness

in all seriousness — 慣用語

1. used to show that you are not joking and genuinely mean what you are about to sa

1.慣用語
釋義

說正經的;不開玩笑地

used to show that you are not joking and genuinely mean what you are about to say, especially when shifting from a light-hearted topic to a more serious one

例句

In all seriousness, we need to find a new place to live before the rent goes up again.

In all seriousness, thank you for driving three hours just to help me move.