Not allowed or not officially approved.

Third-person singular simple present indicative form of unauthorize

present participle of unauthorize

(transitive) To disown the authority of; to repudiate. / (transitive, computing) To withdraw authorization or permissions from.

Not authored; without an author; unwritten. / Of no known author; anonymous.

plural of unauthorized term

(information science) A term discouraged by a controlled vocabulary in favor of its authorized synonym, such as pitch in favor of frequency.

In an unauthorized way; without authorization.

The quality of being unauthorized.