ul·tra | \ˈəl-trə \

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

All of the fun paid off in the end, with Graham modeling some ultra-skimpy bikinis including suits from her own line, Swimsuits for All x Ashley Graham, and even a risky ultra-thin halter top. Dave Quinn, PEOPLE.com, "Ashley Graham Twerks in a Tiny Thong Bikini on Set of Her Sports Illustrated Swimsuit Shoot," 1 Mar. 2018 Agarwal decided to take a shot, using an ultra-high-speed camera and microphones above and below the surface of the water. Jason Daley, Smithsonian, "The Physics Behind a Leaky Faucet’s Maddening ‘Plink’," 25 June 2018 Reports out of northwestern Ireland speculate that Harry and Meghan are honeymooning at Ashford Castle, an ultra-luxe five-star resort in County Galway. Julie Kosin, Harper's BAZAAR, "Prince Harry and Duchess Meghan Might Be Honeymooning at Ireland's Ultra-Swanky Ashford Castle," 7 June 2018 In Israel, the religious authorities are ultra-Orthodox. Lisa Miller, Daily Intelligencer, "The Face of Birthright Israel Is Speaking Out Against the Prime Minister," 30 May 2018 Video provided by Newsy Newslook When most people think of extreme athletes — Ironman triathletes, marathoners, and even those who compete in 100-mile ultra marathons — the picture of a very fit, very healthy person comes to mind. Kristen Jordan Shamus, USA TODAY, "Is it possible to exercise too much? Heart expert says yes," 2 May 2018 When most people think of extreme athletes — Ironman triathletes, marathoners, and even those who compete in 100-mile ultra marathons — the picture of a very fit, very healthy person comes to mind. Kristen Jordan Shamus, Detroit Free Press, "Heart expert: 'You can overdose exercise'," 1 May 2018 Because people are not going to go from the 1K to the ultra-marathon, right. Nicholas Thompson, WIRED, "Susan Wojcicki on YouTube's Fight Against Misinformation," 15 Mar. 2018 Distances range from a 1-kilometer walk for kids to a 100-kilometer ultra marathon. Chelsey Lewis, Milwaukee Journal Sentinel, "Beef-A-Rama, Fall Colors Comet Sky Ride and more to do around Wisconsin," 24 Sep. 2017

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

10 Oct 2018

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

: beyond the range or limits of


ul·tra | \ˈəl-trə \

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

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