ultralightweight

adjective
ul·​tra·​light·​weight | \ ˌəl-trə-ˈlīt-ˌwāt How to pronounce ultralightweight (audio) \

Definition of ultralightweight

: having an extremely low weight : very lightweight Exciting new developments in ultralightweight materials and powerful rocket motors now give amateurs all the tools they need to venture toward the final frontier.— Shawn Carlson

First Known Use of ultralightweight

1906, in the meaning defined above

Learn More About ultralightweight

Time Traveler for ultralightweight

Time Traveler

The first known use of ultralightweight was in 1906

See more words from the same year

Dictionary Entries Near ultralightweight

ultralight

ultralightweight

ultralow

See More Nearby Entries 

Statistics for ultralightweight

Cite this Entry

“Ultralightweight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultralightweight. Accessed 2 Oct. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on ultralightweight

Thesaurus: All synonyms and antonyms for ultralightweight

WORD OF THE DAY

Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

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