ultralight

1 of 2

adjective

ul·​tra·​light ˈəl-trə-ˌlīt How to pronounce ultralight (audio)
: extremely light in mass or weight
an ultralight alloy
an ultralight pullover

ultralight

2 of 2

noun

: a very light recreational aircraft typically for one person that is powered by a small gasoline engine

Examples of ultralight in a Sentence

Recent Examples on the Web
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Adjective
Sherpani Meridian 22-inch Carry-on The Sherpani Meridian has an ultralight polycarbonate shell that the brand calls crush-proof and chip-resistant. Olivia Young, Travel + Leisure, 7 Sep. 2025 This means that, in a matter of seconds, the concept can be converted from a closed sports coupe to an open, ultralight convertible. New Atlas, 2 Aug. 2025
Noun
These films are stacked or wound into layers, resulting in an ultralight, porous, multilayered carbon nanotube structure. Christopher McFadden, Interesting Engineering, 30 Aug. 2025 Even refilling the car is cheerful; ultralight means ultra-low consumption. Mattias Goldmann, Forbes.com, 17 Aug. 2025 See All Example Sentences for ultralight

Word History

First Known Use

Adjective

1974, in the meaning defined above

Noun

1974, in the meaning defined above

Time Traveler
The first known use of ultralight was in 1974

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Cite this Entry

“Ultralight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultralight. Accessed 9 Sep. 2025.

Kids Definition

ultralight

adjective
ul·​tra·​light
ˈəl-trə-ˌlīt
: very light in mass or weight
an ultralight alloy
an ultralight sweater

More from Merriam-Webster on ultralight

Last Updated: - Updated example sentences
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