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

While the latter might not seem like the worst, neither an ultra-firm nor a cloud-like mattress is the secret to getting a good night's sleep. Taylor Mead, House Beautiful, "The Mlily Fusion Luxe Has Quickly Become My Favorite Mattress of All Time," 8 May 2019 For example, Kate made a public appearance five weeks after Prince George was born on July 22, at the start of an ultra marathon in Anglesey on August 30. Victoria Murphy, Town & Country, "Meghan Markle's Maternity Leave Is “Likely to be Longer” Than Three Months," 26 Apr. 2019 The city last week issued a vaccine mandate that applies to certain ZIP Codes in the Williamsburg section of Brooklyn, where the outbreak began last fall in the ultra-Orthodox Jewish community. ... Melanie Grayce West, WSJ, "New York City Issues Summonses to Parents of Three Unvaccinated Children," 18 Apr. 2019 Brand new memory Memory has been one of the major limitations of ultra-thin laptops. Gordon Mah Ung, PCWorld, "Hands-on: Dell's XPS 13 2-in-1 gets thinner and 2.5x faster with Intel's 10th Core i7," 28 May 2019 Although dramatic, that accurately describes your GI tract's ultra-thin barrier, which allows nutrients from food to pass through and repels toxins. Beth Janes, Good Housekeeping, "Everything You Need to Know About Probiotics, According to Experts," 11 May 2019 The blades are ultra-thin and remarkably sturdy, ensuring that each slice, chop, and dice facilitate laser precision. Popular Mechanics, "These Laser-Sharp Japanese Knives Are a Kitchen Staple," 14 Mar. 2019 In August, an iOS 12 developer beta seemed to confirm rumors that the next iPad Pro would ship with ultra-thin bezels, and without a home button. Andrew Liptak, The Verge, "A new icon seemingly confirms that the next iPad Pro won’t have a home button," 28 Oct. 2018 Made from ultra-thin, flexible, BPA-free polymers, these glasses are shatterproof, reusable, recyclable, made in the U.S. and perfect for occasions when proper stemware isn’t possible (i.e. travel, poolside). Stephanie Miskew, Fox News, "6 holiday gifts for the wine lover who has everything," 8 Dec. 2015

Recent Examples on the Web: Noun

Looking at some of the major ultras, women often have a lower DNF rate. Stephanie Case, Outside Online, "Op-Ed: We Need to Fix Ultrarunning's Gender Problem," 25 May 2018 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

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

6 Jun 2019

Look-up Popularity

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).


to move with exaggerated bouncy motions

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