Adjective: Peremptory (puh-REMP-tuh-ree)
1. Barring a right of action, debate or delay.
2. Expressive of urgency or demand.
3. Marked by arrogant self-assurance; haughty.
Sample sentence: The manager’s peremptory rejections of any suggestions for improving office efficiency did little to inspire our confidence in his ability to help turn the company around.