ultralight

1 of 2

adjective

ul·​tra·​light ˈəl-trə-ˌlīt How to pronounce ultralight (audio)
Synonyms of ultralightnext
: 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
The researchers searched for ultralight dark matter, a hypothetical form of matter that could subtly alter the energy levels inside atomic nuclei. Rupendra Brahambhatt, Interesting Engineering, 13 June 2026 By Shannon McMahon February 23, 2023 The Best Travel Workout Equipment That Won't Take Over Your Suitcase From collapsible foam rollers to low-weight wrist bands and ultralight yoga mats. Hannah Chubb, Condé Nast Traveler, 13 June 2026
Noun
The former capsule reinterprets dressy denim and casual linen pieces, including blazers and field jackets, while the latter comprises T-shirts, sweatpants and shorts, as well as an ultralight sneaker. Martino Carrera, Footwear News, 19 June 2026 The ultralight Sleepingo air mattress is excellent for backpacking. Bestreviews, Chicago Tribune, 19 June 2026 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 25 Jun. 2026.

Kids Definition

ultralight

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

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