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
As someone who’s curious about lightweight backpacking but unwilling to leave behind my 350-page novel, cutting my pack’s base weight could be my window into the ultralight world. Amelia Arvesen, Outside, 16 Mar. 2026 Jetboil is still best known for ultralight packable stove systems derived from its Personal Cooking System (PCS), its very first product debuted in 2003. New Atlas, 12 Mar. 2026
Noun
Reiter imagines the ultralight, streamlined Orca transporter serving roles as diverse as individual customers. C.c. Weiss march 05, New Atlas, 5 Mar. 2026 The Helix is classified as a Part 103 ultralight aircraft, the same regulatory class as a hang glider. The Los Angeles Times, Chicago Tribune, 4 Mar. 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 Mar. 2026.

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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