ultra

adjective

ˈəl-trə How to pronounce ultra (audio)
Definition of ultranext
as in extreme
being very far from the center of public opinion espouses a kind of ultra conservatism that even some members of his own party cannot support

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of ultra The pilot has a 4K ultra-high-definition screen in the cockpit instead, which re-creates the outside view digitally. — Jacopo Prisco, CNN Money, 6 Aug. 2026 Its ultra-low-latency HyperSpeed Wireless tech ensures pixel-precise tracking during intense matches, while Bluetooth mode extends battery life up to an astounding 535 hours. — Juhi Wadia, PC Magazine, 5 Aug. 2026 The condo’s listing price is on par with a new ultra-luxury development on the island, The Mansions at Fisher Island. — Catherine Odom, Miami Herald, 5 Aug. 2026 The partners have yet to secure permits, meaning the ultra-luxury transformation will take several years to finalize. — Wendy Bowman, Robb Report, 5 Aug. 2026 See All Example Sentences for ultra
Recent Examples of Synonyms for ultra
  1. extreme
  2. radical
  3. rabid
  4. revolutionary
Adjective
  • To an outsider, and in isolation, some of these habits may not seem so extreme—Reddit peptides excepted.
    — Tori Latham, Robb Report, 8 Aug. 2026
  • North of the border, in British Columbia, hundreds more homes were lost this week, and 15,000 people are currently under evacuation, with extreme fire weather conditions predicted to worsen in the coming days.
    — John Vaillant, Time, 8 Aug. 2026
Definition of extreme
Adjective
  • Many fans have been playing the game for years and aren't necessarily into a radical change on such a huge mechanic like catching passes.
    — Brian Mazique, Forbes.com, 11 Aug. 2026
  • His platform—Medicare for All, student debt cancellation, and a wealth tax—was radical by American standards and entirely conventional by the standards of most rich democracies.
    — Nick Lichtenberg, Fortune, 10 Aug. 2026
Definition of radical
Adjective
  • Portions of a Maryland state park remain closed to visitors after two people were attacked by rabid beavers in the past two weeks.
    — Maia Nehme, Washington Post, 8 Aug. 2026
  • On July 26, a 13-year-old boy was bitten by a rabid beaver at Cunningham Falls State Park's William Houck area near the North Beach of the lake.
    — Adam Thompson, CBS News, 6 Aug. 2026
Definition of rabid
Adjective
  • Invisasox are made with a revolutionary gel heel grip mesh design that keeps the sock on better than any other no show sock -- guaranteed to stay on.
    — ABC News, ABC News, 10 Aug. 2026
  • His office walls are full of samurai swords and revolutionary art, and his desk is littered with Zyn cans and sugar-free Dr Peppers.
    — Josh Eells, Rolling Stone, 9 Aug. 2026
Definition of revolutionary

Phrases Containing ultra

Browse Nearby Words

ultimatums
ultra
ultrabright
See all Nearby Words

Cite this Entry

“Ultra.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultra. Accessed 13 Aug. 2026.

Copy Citation

More from Merriam-Webster on ultra

Britannica.com: Encyclopedia article about ultra

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of salvo

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

7 Pairs of Commonly Confused Words

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

Words from the 'Odyssey'

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

The Words of the Week - Aug. 14

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
fridge-magnet-letters
Drop a Letter Quiz August 2026 Drop a letter from a word to make a totally diffe...
See All