[Vocabulary] alternative of: "a turning point"

[symaa]

Hello

Is there any alternative/equivalent of the expression "a turning point"?

Ex:

X ( A particular event) was a turning point in his career/life...


Thank you so much in advance.

 

[Rover_KE]

Watershed, crossroads, defining moment, point of no return.

 

[symaa]

Thank you, Sir, for the answer.

 

[konungursvia]

Or one of my favourite words, a peripateia.