Point-of-no-return Synonyms

A line that when crossed permits of no return and typically results in irrevocable commitment
(Noun)
Synonyms:
  1. rubicon
  2. turning point
  3. last chance
  4. climax
  5. crunch
  6. extremity
  7. decisive moment
  8. defining-moment
  9. moment-of-truth
  10. when-push-comes-to-shove
  11. match-point
  12. terminus
  13. crossroads