autocrat

An absolute ruler with infinite power.

Your salary is high; you are to have apartments in the house; and to be the autocrat of the library, where, I shrewdly suspect, your reign will be undisturbed.

Indeed, we take this trip at a time when the world faces a choice between autocracy and democracy. As Russia wages its premeditated, illegal war against Ukraine, killing thousands of innocents — even children — it is essential that America and our allies make clear that we never give in to autocrats.

A title borne by some such monarchs, as in Byzantium and tsarist Russia.

Until the 20th century, a favorable description of a ruler who was connected with the concept of lack of conflicts of interest and an indication of grandeur and power.