as in thin
being of less than usual width
a new generation of flat-panel TVs that were ultrathin
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Recent Examples of ultrathin
Analysts expect the iPhone 17 to feature different models, including the Base, Pro, Pro Max and what could be a new line, the ultrathin iPhone Air.
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Pia Singh, CNBC, 9 Sep. 2025
And an all-new model, which is expected to be called the iPhone 17 Air, will have an ultrathin body.
—Bloomberg, Mercury News, 5 Sep. 2025
Composed of 100 or more layers of ultrathin film produced in the vacuum tank, the silvery pieces are abstract but reveal a tinge of figuration.
—Julie Belcove, Robb Report, 31 Aug. 2025
In research described in Nature Nanotechnology, Jiong Lu and his colleagues at National University of Singapore and in China developed a technique that can grow a 200-millimeter sheet of a new kind of ultrathin carbon material in just 3 seconds, with no detectable impurities.
—IEEE Spectrum, 18 Aug. 2025
See All Example Sentences for ultrathin
Recent Examples of Synonyms for ultrathin
Adjective
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The water pressure then causes the vehicle to rise and slide on a thin layer of water between the tires and the road, making the driver lose control.—
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Yimobra Memory Foam Bath Mat, $9 with Prime The bath mat is made from memory foam that feels plush underfoot and cushions each step, unlike thin cotton mats.—
Adjective
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There’s also a secret pocket in the waistband for storing small slender items like credit cards or an ID.—
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There’s more to the TV than its ultra-slender dimensions, though.—
Adjective
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During this time frame, a narrow, intense lake-effect snow band, only about 10 miles wide, will be capable of thunder, wind gusts near 35 mph and near-zero visibility at its peak.—
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The climb is infamous for its heart-pumping switchbacks and vertiginous jaunt along a narrow sliver of crag.—
Cite this Entry
“Ultrathin.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultrathin. Accessed 13 Jan. 2026.
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