on second thought

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

ripensandoci, a pensarci bene

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.
Prenderò il pollo, no, ripensandoci, prenderò il pesce.
Let's go to the park. Actually, on second thought, it might rain.
Andiamo al parco. In realtà, ripensandoci, potrebbe piovere.