imperial
[adjective]
Synonyms: royal, kingly, majestic, princely, queenly, regal, sovereign

[TahlilGaran] English Synonym Dictionary ▲

im‧pe‧ri‧al /ɪmˈpɪəriəl $ -ˈpɪr-/ adjective [only before noun]
[Date: 1300-1400; Language: French; Origin: Late Latin imperialis, from Latin imperium 'command, empire']

1. relating to an empire or to the person who rules it:
Britain’s imperial expansion in the 19th century

2. relating to the system of weights and measurements based on pounds, inches, miles etc

[TahlilGaran] Dictionary of Contemporary English ▲