of, like, or pertaining to an empire.

of, like, or pertaining to an emperor or empress.

characterizing the rule or authority of a sovereign state over its dependencies.

of the nature or rank of an emperor or supreme ruler.

of a commanding quality, manner, aspect, etc.

domineering; imperious.

befitting an emperor or empress; regal; majestic; very fine or grand; magnificent.

of special or superior size or quality, as various products and commodities.

(of weights and measures) conforming to the standards legally established in Great Britain.

a size of printing or drawing paper, 22 × 30 in. (56 × 76 cm) in England, 23 × 33 in. (58 × 84 cm) in America.

imperial octavo, a size of book, about 8 1 / 4 × 11 1 / 2 in. (21 × 29 cm), untrimmed, in America, and 7 1 / 2 × 11 in. (19 × 28 cm), untrimmed, in England. Abbreviation

imperial 8vo

imperial quarto, Chiefly British . a size of book, about 11 × 15 in. (28 × 38 cm), untrimmed. Abbreviation

imperial 4to

the top of a carriage, esp. of a diligence.

a case for luggage carried there.

a member of an imperial party or of imperial troops.

an emperor or empress.

any of various articles of special size or quality.

an oversized bottle used esp. for storing Bordeaux wine, equivalent to 8 regular bottles or 6 l (6.6 qt.).

adjective

domineering , kingly , lordly , magisterial , majestic , regal , royal , sovereign , stately