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Synonyms

imperious

American  
[im-peer-ee-uhs] / ɪmˈpɪər i əs /

adjective

  1. domineering in a haughty manner; dictatorial; overbearing: an imperious person.

    an imperious manner;

    an imperious person.

    Synonyms:
    arrogant, despotic, tyrannical
    Antonyms:
    submissive
  2. urgent; imperative.

    imperious need.

    Synonyms:
    necessary
    Antonyms:
    unnecessary

imperious British  
/ ɪmˈpɪərɪəs /

adjective

  1. domineering; arrogant; overbearing

  2. rare urgent; imperative

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of imperious

First recorded in 1535–45; from Latin imperiōsus “commanding, tyrannical,” equivalent to imperi(um) imperium + -ōsus -ous

Explanation

Someone who is imperious gives orders in a way that shows they feel superior or more important than other people. You might want the smartest kid in the class as your lab partner, but not if they have an imperious attitude and boss you around. Near synonyms are arrogant, overbearing, and domineering. The adjective imperious is from Latin imperiōsus, from imperium "command, supreme power, empire." This Latin word is also the ultimate source of English empire, "a group of countries or territories controlled by a single ruler or one government."

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Vocabulary lists containing imperious

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Imperious as Perrin is when she is on song - and it really is a sight to behold - she is still searching for consistency.

From BBC • Aug. 30, 2025

Imperious, clever, cruel and unhappy, Princess Margaret is described by Craig Brown as “the one who wasn’t,” “the second-born, the also-ran.”

From New York Times • Aug. 21, 2018

Great finish, but the pass from Messi … Imperious.

From The Guardian • Jun. 18, 2016

Imperious but witty, Claire wears a diamond necklace and a white fur-trimmed coat; she carries a cane.

From The New Yorker • Apr. 27, 2015

Surely not, because "Imperious Cæsar dead and turned to clay, Might stop a hole to keep the wind away," says Shakespeare.

From The Young Man and the World by Beveridge, Albert Jeremiah

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