An imperative gesture.
It is imperative that I go.
Requests that grew more and more imperative.
An example of imperative is the power that a government has over its people.
An example of imperative is the decision to give a cesarean in a breach birth.
An example of imperative is a sergeant telling a soldier to do fifty push ups.
The verbs in sentences like "Do it!" and "Say what you like!" are in the imperative.
Visiting Berlin is an imperative.