ULTRARARE Synonyms: 81 Similar and Opposite Words

ultrarare

adjective

Definition of ultrarare

as in rare

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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 ultrarare That’s when surgeons infused a drug into her spine to fix the ultrarare genetic glitch that had vexed her nervous system since infancy. — Erika Check Hayden Brittainy Newman, New York Times, 19 Dec. 2022

Recent Examples of Synonyms for ultrarare

Adjective

Voting by noncitizens and fraud involving mail ballots are both rare.

— Aoife Walsh, Washington Post, 27 Oct. 2026
Back in 2023, Stevens revealed he was diagnosed with Guillain-Barré syndrome—a rare auto-immune disorder in which the body’s immune system attacks the nerves—and was working to relearn how to walk and use his hands.

— Nina Corcoran, Pitchfork, 27 Oct. 2026

Definition of rare

Adjective

Highfill maintains a covenant requiring utility rates to generate net revenues equal to at least 110% of maximum annual debt service on outstanding system bonds.

— Randy Moll, Arkansas Online, 26 Oct. 2026
The debt reflects the principal amount outstanding under convertible notes Anthropic issued to Amazon starting in 2023, according to the lab's prospectus.

— Ashley Capoot,Jordan Novet,Annie Palmer,Lora Kolodny,Kai Nicol-Schwarz,Caleigh Keating, CNBC, 26 Oct. 2026

Definition of outstanding

Adjective

His 28-yard touchdown reception from Sam Darnold late in the second quarter beat Delane, who had excellent position.

— Blair Kerkhoff, Kansas City Star, 26 Oct. 2026
The biggest key for the Brewers in this game is to see if their bullpen can keep their excellent pitching alive.

— OutKick, FOXNews.com, 26 Oct. 2026

Definition of excellent

Adjective

That, coupled with the first experiment – those were transcendent moments.

— Karl Deisseroth, The Conversation, 15 Oct. 2026
What about the strange, transcendent experiences that only fully reveal themselves when encountered collectively, in a room, over time?

— Sam Fleischner, IndieWire, 14 Oct. 2026

Definition of transcendent

Adjective

Eisenkot is viewed by supporters as a capable leader with sterling security credentials who, along with his likely governing partners, could act as a bulwark against creeping illiberalism.

— Arkansas Online, Arkansas Online, 28 Oct. 2026
Charms on a bracelet sold through TikTok Shop, also advertised as sterling silver, contained about 33% cadmium, roughly 3,300 times the limit, according to trade publication JCK’s summary of the report.

— Bilin Lin, Fortune, 16 Oct. 2026

Definition of sterling

Adjective

As a bonus, OLED makes movies, photos, and games look far superior to those on screens without this backlighting tech.

— Joe Osborne, PC Magazine, 26 Oct. 2026
The original’s superior slide-in design was traded for a vice-grip design to ensure compatibility with both the newer and older Switch consoles.

— Cameron Faulkner, The Verge, 25 Oct. 2026

Definition of superior

Adjective

Frank Nazar had a prime opportunity to put the Hawks back ahead less than four minutes later — he was given a penalty shot after defenseman Andreas Englund hooked him on a breakaway.

— Kalen Lumpkins, Chicago Tribune, 30 Oct. 2026
Parent company Kering had acquired the building in 2023, before forming a joint venture with Ardian that gave the private equity firm a majority stake in a portfolio of prime real estate assets, including the Avenue Montaigne location.

— Joelle Diderich, Footwear News, 30 Oct. 2026

Definition of prime

Browse Nearby Words

ultrarapid

ultrarare

ultrarefined

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Style

“Ultrarare.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultrarare. Accessed 1 Nov. 2026.

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Synonyms of ultrarare

adjective

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