adjective
peremptory
puh-REMP-tuh-ree/pəˈremptəri/
Demanding compliance without allowing refusal or debate.
The man's peremptory gesture commands the woman to sit without debate.

Etymology
Taking away entirely becomes destroying or cutting off. From “destructive,” the adjective developed the legal force of “decisive, final,” then described people or commands that allow no refusal or debate.
In context
In a harsh peremptory voice he said--"Show me your son's room."
More examples
- The manager issues a peremptory order to leave the building.
- He cuts off our questions with a peremptory wave.
- “Sit down now,” she says in a peremptory voice.
Forms
peremptory
peremptorily adverb — In a manner allowing no objection.
Similar words
- imperious
- Emphasizes an overbearing manner that expects unquestioning obedience.
- dictatorial
- Suggests oppressive control over others, beyond a single demand.