Definitions

1. noun

The practice or policy of using a veto, especially as a means of obstructing legislation or government decisions.

“The president’s vetoism led to a deadlock in the legislative process.”

2. noun

A system or policy of government by veto, in which a single person or group has the power to veto decisions or actions.

“The new government was based on a system of vetoism, giving the president significant control over policy decisions.”