point of no return
nounUK /ˌpɔɪnt əv nəʊ rɪˈtɜːn/
US /ˌpɔɪnt əv noʊ rɪˈtɝːn/
The moment when you cannot go back and must keep going.
Once she jumped off the diving board, she had passed the point of no return.
RELATED WORDS
OTHER MEANINGS
2. The stage in a journey or process after which turning back is impossible.
After the plane took off, we were past the point of no return.
3. A moment in a project when stopping would cost too much to be worthwhile.
The company reached the point of no return and had to finish the building.
4. The moment in a story when the hero cannot undo their choice.
The hero's point of no return came when he told the truth to the king.