1. In a manner characteristic of or befitting a dictator; in an authoritarian, domineering, or tyrannical way
The manager dictatorially imposed new rules without consulting the team.
O gerente ditatorialmente impôs novas regras sem consultar a equipe.
2. With absolute power and authority; in a manner that brooks no opposition or discussion
She dictatorially decided the company's direction without input from stakeholders.
Ela ditatorialmente decidiu a direção da empresa sem contribuição dos interessados.