Synonyms of rubicon

Noun

1. Rubicon

usage: the boundary in ancient times between Italy and Gaul; Caesar's crossing it with his army in 49 BC was an act of war

2. Rubicon, point of no return, line, dividing line, demarcation, contrast

usage: a line that when crossed permits of no return and typically results in irrevocable commitment

Definition and meaning of rubicon (Dictionary)