ul·​tra | \ ˈəl-trə How to pronounce ultra (audio) \

Definition of ultra

 (Entry 1 of 3)

: going beyond others or beyond due limit : extreme



Definition of ultra (Entry 2 of 3)

: one that is ultra : extremist



Definition of ultra- (Entry 3 of 3)

1 : beyond in space : on the other side : trans- ultraviolet
2 : beyond the range or limits of : transcending : super- ultramicroscopic
3 : beyond what is ordinary, proper, or moderate : excessively : extremely ultramodern

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Examples of ultra in a Sentence


espouses a kind of ultra conservatism that even some members of his own party cannot support

Recent Examples on the Web: Adjective

This look is just the latest in a series of ultra-chic outfits the former FLOTUS has worn on her country-wide book tour. Lauren Alexis Fisher, Harper's BAZAAR, "Michelle Obama Just Won 2018 in These Sparkling Thigh-High Balenciaga Boots," 20 Dec. 2018 The ultra-thin strips work on what's known as the anisotropic magneto-resistive (AMR) effect. David Grossman, Popular Mechanics, "Electronic Skin Can Give Humans Directional Superpowers," 16 Nov. 2018 Check out some of their ultra-chic Halloween decor below, along with some very-on-sale cozy fall favorites for your home. Brittney Morgan, House Beautiful, "Overstock's Anniversary Sale Is Here, And It's Got Some Killer Fall Sales," 1 Oct. 2018 The camera has a 24.3 megapixel sensor with ultra-fast autofocus and shooting. The Good Housekeeping Institute, Good Housekeeping, "Nikon D750 with 24-120mm VR Lens Kit," 7 Nov. 2016 The survival of man depends on the early construction of an ultra-intelligent machine. Kelsey Piper, Vox, "The case for taking AI seriously as a threat to humanity," 21 Dec. 2018 Spotted out with her friend, and fellow style star, Jaden Smith in Los Angeles on December 16, Kendall wore an ultra-casual brunch look that was both practical and cozy. Alyssa Hardy, Teen Vogue, "Kendall Jenner’s Braless Brunch Look Is the Perfect Solution for Wearing a Crop Top All Winter," 17 Dec. 2018 So, for our ultra-clean copper surface, sticking a carbon monoxide molecule on it is like putting a great big tree stump in the middle of an electron highway. Chris Lee, Ars Technica, "Fractal structure produces fractal electrons with fractal energies," 2 Dec. 2018 He has also been buoyed by a historic split in the ultra-Orthodox electorate, which did not vote en masse in the first round. Aron Heller, The Seattle Times, "Jerusalem picks new mayor in round 2 of municipal elections," 13 Nov. 2018

Recent Examples on the Web: Noun

It’s pared down from vests built for ultras, which require the runner to carry more gear than an OCR, without compromising on features. Ariella Gintzler, Outside Online, "Testing Ultimate Direction’s New OCR Vest," 12 July 2018 The ultras did themselves no favours by failing to suggest their own solutions to the complex problems that the Chequers compromise took on. The Economist, "What doesn’t kill her makes Theresa May stronger," 12 July 2018 But ahead of the World Cup, Russian law enforcement has detained leaders of hooligan groups, known as ultras, and pushed many of their members out of Russia’s World Cup cities for the extent of the tournament. Thomas Grove, WSJ, "Russia Gives Soccer Hooligans the Boot at World Cup," 4 July 2018 Among the scores of ultras now filling the calendar, some make use of long, flat tracks to encourage speed. David Wharton, latimes.com, "Ultra running can mean extreme heat, mountain climbs and, oh yeah, look out for those trees," 14 June 2018 The group’s leader, Fernando Madureira, confirmed by text message that his cohort had seen a YouTube clip of Napoli’s ultras in action and decided to borrow the tune. Rory Smith, New York Times, "How an Italian Disco Hit Became Liverpool’s Champions League Anthem," 23 May 2018 Starting in the summer over a huge contract dispute, the stopper received abuse from Italy fans during one match in particular, during which ultras threw fake money at the youngster. SI.com, "Gianluigi Donnarumma's Agent Hints at Summer Departure With Pepe Reina Set to Replace the Italian," 21 Mar. 2018 But this is the first prospective study to assess a person’s cancer risk alongside their ultra processed foods habit, and way more research needs to be done before any definitive conclusions can be made, says Srour. Korin Miller, SELF, "What Are 'Ultra-Processed' Foods Exactly?," 2 Mar. 2018 That’s a question Second Amendment ultras never answer. Ed Kilgore, Daily Intelligencer, "Do We Need Assault Weapons in Case We Decide to Kill ‘Tyrannical’ Cops and Soldiers?," 22 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultra.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of ultra


1818, in the meaning defined above


1819, in the meaning defined above

History and Etymology for ultra






Latin, from ultra beyond, adverb & preposition, from *ulter situated beyond — more at ulterior

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Statistics for ultra

Last Updated

14 Mar 2019

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Time Traveler for ultra

The first known use of ultra was in 1818

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More Definitions for ultra



English Language Learners Definition of ultra-

: beyond : extremely : more than is usual
technical : beyond the range or limits of


ul·​tra | \ ˈəl-trə How to pronounce ultra (audio) \

Kids Definition of ultra

: extreme entry 1 sense 1 ultra plush chair



Kids Definition of ultra-

1 : beyond in space : on the other side ultraviolet
2 : beyond the limits of : super-
3 : beyond what is ordinary or proper

More from Merriam-Webster on ultra

Thesaurus: All synonyms and antonyms for ultra

Britannica.com: Encyclopedia article about ultra

Comments on ultra

What made you want to look up ultra? Please tell us where you read or heard it (including the quote, if possible).


of or relating to a parable or parabola

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