"Dictatory" is a word in ENGLISH

Characteristic of a dictator; imperious; dogmatical; overbearing; as, a dictatorial tone or manner.

Asserting a thing positively and authoritatively; positive; magisterial; hence, arrogantly authoritative; overbearing.

Of or pertaining to a master or magistrate, or one in authority; having the manner of a magister; official; commanding; …

Fully assured; confident; certain; sometimes, overconfident; dogmatic; overbearing; -- said of persons.