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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
This one has a sleek, ultralight design that makes vacuum cleaning less exhausting. — Bestreviews, Mercury News, 26 June 2026 With a cushioned foam insole and ultralight design, they’re made for long days shopping, traveling, or running errands. — Erika Reals, InStyle, 23 June 2026
Noun
Further, these ultralights don’t have to land at an airport or registered site. — Steve Banker, Forbes.com, 20 Apr. 2026 On his signal, the ultralight began to accelerate, towing our hang glider by a long rope. — Amber Harding Outkick, FOXNews.com, 12 May 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

Rhymes for ultralight

See All Rhymes for ultralight

Browse Nearby Words

ultraliberal
ultralight
ultralightweight
See all Nearby Words

Cite this Entry

“Ultralight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultralight. Accessed 7 Jul. 2026.

Copy Citation

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

Thesaurus: All synonyms and antonyms for ultralight

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
hangman letters and game
Hangman Lightning Round Figure out which word fits in the blanks.
See All