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imperious

[im-peer-ee-uh s] /ɪmˈpɪər i əs/
adjective
1.
domineering in a haughty manner; dictatorial; overbearing:
an imperious manner; an imperious person.
2.
urgent; imperative:
imperious need.
Origin
1535-1545
1535-45; < Latin imperiōsus commanding, tyrannical, equivalent to imperi(um) imperium + -ōsus -ous
Related forms
imperiously, adverb
imperiousness, noun
nonimperious, adjective
nonimperiously, adverb
nonimperiousness, noun
unimperious, adjective
unimperiously, adverb
Can be confused
imperative, imperial, imperious.
Synonyms
1. tyrannical, despotic, arrogant. 2. necessary.
Antonyms
1. submissive. 2. unnecessary.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un imperious

imperious

/ɪmˈpɪərɪəs/
adjective
1.
domineering; arrogant; overbearing
2.
(rare) urgent; imperative
Derived Forms
imperiously, adverb
imperiousness, noun
Word Origin
C16: from Latin imperiōsus from imperium command, power
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
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Word Origin and History for un imperious

imperious

adj.

1540s, from Latin imperiosus "commanding, mighty, powerful," from imperium "empire, command" (see empire). Related: Imperiously.

Online Etymology Dictionary, © 2010 Douglas Harper
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