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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:

Plummer’s Getty is imperious and withholding, refusing to pay the ransom for his kidnapped grandson and seemingly puzzled that anyone would expect him to.

From Los Angeles Times Aug. 20, 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 31-year-old was in imperious form, averaging 107 and 111, before another 100-plus average in the final.

From BBC May 14, 2026

He ran afoul of some in the orchestra and of its imperious head, Ernest Fleischmann.

From Los Angeles Times Apr. 24, 2026

Carelessly she laid her hand upon the desk to show off the emerald ring, and she spoke in the most imperious tone she could manage.

From "The Long-Lost Home" by Maryrose Wood

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