An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

Of, relating to, or characterized by strict obedience to authority.

From authorit(y), → authority, + suffix -arian.

1) The enforcement or advocacy of strict obedience to authority at the expense of personal freedom.
2) Lack of concern for the wishes or opinions of others (OxfordDictionaries.com).

→ authoritarian; → -ism.