hinged on
Rested entirely upon
Hinged on means depended on or was determined by, as a door's movement depends on its hinge: The entire case hinged on one piece of evidence.
The phrase emphasizes that everything turns on a single crucial factor—remove that factor and the whole thing falls apart.
- crucialOf supreme importance
- contingentConditional or representative group
- predicatedBased on something assumed
- dependentRequiring outside support
- pivotalVitally important, deciding
make or break · rested · premised · determinant · critical · decisive · conditional · reliant · based on · fulcrum · rely · lever · stood on · tied · causation · articulation · linked · result