crosses the Rubicon

Passes no return

To cross the Rubicon is to take an irreversible step, passing a point of no return.

The phrase comes from Julius Caesar's fateful decision in 49 BCE to lead his army across the Rubicon River into Italy, an act of war against Rome.

Once across, there was no turning back.

When she submitted her resignation, she crossed the Rubicon.

Related

threshold · finality · Pompey · commitment · audacity · Civil War · watershed moment · leap of faith · boundary · gamble · turning point · decisive action · bold move · point of no return · Roman Republic · consequence · Senate · metaphorical

Opposites
commitment and irreversibility

crosses the Rubiconhedges one's bets

Protects against total loss

backs down · turns back · hesitates · wavers · vacillates

boldness of action

crosses the Rubiconchickens out

Abandons plan from fear

balks · flinches · shrinks back · gets cold feet · punts

strategic optionality

crosses the Rubiconhedges

Planted boundary lines

tests the waters · bides one's time

Family

cross, crosses, crossed, crossing, crosser, crossings, crucify, crucifixion, crucial

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G