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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

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.

See Examples For:

Since claiming the Iron Throne, however, she has been a whinging, imperious mess.

From Los Angeles Times Aug. 10, 2026

But after an imperious performance across the week at a raucous Tollcross, they will never be as low again.

From BBC Jul. 29, 2026

The movie becomes increasingly surreal as Corvette, the Velvet Gang leader played by Keke Palmer, works to clean out the neon stores of an imperious designer played by Demi Moore.

From The Wall Street Journal May 27, 2026

The two-time major winner, who claimed this title in 2024, looked back to her imperious best in a bogey-free round at Houston's Memorial Park Golf Course.

From BBC Apr. 24, 2026

Mrs. Sharpe’s imperious tone brought everyone to a standstill.

From "Chasing Vermeer" by Blue Balliett

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