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un
unpronounone.
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UN
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un-
un-a prefix meaning “not,” freely used as an English formative, giving negative or opposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able ), and less freely used in certain other nouns (unrest; unemployment ).
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'un
un
1 Americanpronoun
abbreviation
prefix
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denoting reversal of an action or state
uncover
untangle
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denoting removal from, release, or deprivation
unharness
unman
unthrone
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(intensifier)
unloose
abbreviation
pronoun
prefix
Usage
This spelling is intended to reflect a dialectal or informal pronunciation
Related Words
See in- 3.
Etymology
Origin of un-3
Middle English un-, on-, Old English; cognate with Dutch on-, Gothic, German un-, Old Norse ū-, ō-; akin to Latin in-, Greek an-, a-. See a- 6, an- 1, in- 3
Origin of un-4
Middle English, Old English un-, on-; cognate with Gothic and-, Dutch ont-, German ent-; akin to Latin ante, Greek antí; cf. ante-, anti-
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.
During the early years of his leadership, Kim Jong Un sought to secure his legitimacy by dressing like his grandfather Kim Il Sung.
From BBC • May 5, 2026
In November 2022, a photo emerged of North Korean leader Kim Jong Un with a smartly-dressed young girl by his side - his daughter Ju Ae.
From BBC • May 5, 2026
They follow a pledge by leader Kim Jong Un to bolster nuclear forces, as Pyongyang reaps the benefits of deeper ties with Russia and sharpens its invective against US ally South Korea.
From Barron's • Apr. 27, 2026
Kim Jong Un is pushing for rapid advances, with the country’s main nuclear site showing increased activity.
From The Wall Street Journal • Apr. 20, 2026
“Nsongonya,” they kept shouting, “Les fourmis! Un corps d’armée!”
From "The Poisonwood Bible" by Barbara Kingsolver
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.