Definitions

1. adjective

given or given as if by authority, requiring no debate or argument; imperious, authoritative

“She gave a peremptory order to the team to get the project done on time.”

2. noun

a peremptory order or command

“The peremptory tone of the manager made everyone nervous.”

3. verb

to give or utter a peremptory order or command

“The captain peremptorily called out for everyone to stop the fight.”