: carried on between or concerning empires or parts of an empire interimperial trade.

What does the word imperially mean?

/ (ɪmˈpɪərɪəl) / adjective. of or relating to an empire, emperor, or empress. characteristic of or befitting an emperor; majestic; commanding. characteristic of or exercising supreme authority; imperious.

What is the synonym of Imperial?

royal, regal, monarchal, monarchial, monarchical, sovereign, kingly, queenly, princely, majestic. rare imperatorial. 2'her imperial bearing' majestic, grand, dignified, proud, stately, noble, aristocratic, regal. magnificent, great, distinguished, imposing, impressive, august, lofty.