Before I could reply that he was my neighbor dinner was announced; wedging his tense arm imperatively under mine, Tom Buchanan compelled me from the room as though he were moving a checker to another square.
There are no more uses of "imperative" in the book.
Show samples from other sources
I’m hoping to be able to reveal this to my father soon enough, but, for tonight, discretion is imperative."
Kiera Cass -- The One
The evolutionary imperative that drove them to live in groups was the opportunity to kill them by the billions.