imperious

adjective3

1. •
   Domineering, arrogant, or overbearing.

   • The frowning lookes of fiery Tamburlaine, That with his terrour and imperious eies, Commands the hearts of his associates, […] — 1587
2. •
   Urgent; intensely compelling.
3. •
   (no longer used) Imperial or regal.

   • All the terrors of Antichrist; his cruel ediets and anathemas that were thundered from his imperious throne, like storms of fire and brimstone […] — 1789