on second thought

US /ɑːn ˈsek.ənd θɑːt/
UK /ɑːn ˈsek.ənd θɑːt/
"on second thought" picture
1.

다시 생각해보니, 곰곰이 생각해보니

used to say that you have changed your mind or that you have a new idea that is better than your previous one

:
I'll have the chicken, no, on second thought, I'll have the fish.
닭고기로 할게요, 아니, 다시 생각해보니 생선으로 할게요.
Let's go to the park. Actually, on second thought, it might rain.
공원에 가자. 아니, 다시 생각해보니 비가 올 수도 있겠다.