Also means
to overrule
Usage Note
Desautorizar means to remove someone's authority or credibility, whether by officially revoking their mandate (desautorizar a un representante) or by publicly undermining their statements. It is stronger than desacreditar (to discredit) because it implies a formal withdrawal of authorization. The corresponding noun is desautorización. It is a regular -ar verb conjugated like autorizar.
Examples
"El director desautorizó las declaraciones de su portavoz."
Natural Translation
The director discredited his spokesperson's statements.

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