ul·​tra·​rare ˌəl-trə-ˈrer How to pronounce ultrarare (audio)
variants or ultra-rare
: extremely rare or uncommon
ultra-rare diseases
an ultrarare baseball card
reunited the band for an ultrarare appearance
The ultrarare Highland Scotch has been called the "crowning glory" in the … collection and comes in a hand-blown bottle, individually numbered in wax.Mia Stainsby

Examples of ultrarare in a Sentence

Recent Examples on the Web In 2021, an ultrarare variety of a popular exotic houseplant—a variegated Rhaphidaphora Tetrasperma—sold for more than $19,000 in a New Zealand web auction. Brittanie Shey, Chron, 28 Apr. 2023 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ultrarare.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1822, in the meaning defined above

Time Traveler
The first known use of ultrarare was in 1822

Dictionary Entries Near ultrarare

Cite this Entry

“Ultrarare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrarare. Accessed 18 May. 2024.

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