unleaded

adjective

un·​lead·​ed ˌən-ˈle-dəd How to pronounce unleaded (audio)
1
: not having leads between the lines in printing
2
: not treated or mixed with lead or lead compounds
unleaded fuels

Examples of unleaded 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.
The average cost of unleaded gas has climbed more than a dollar in the month since the war began. Michael Loria, USA Today, 31 Mar. 2026 The national average for regular unleaded gasoline, according to AAA , is just a hair below $4 per gallon — up $1 per gallon in a month. Matthew J. Belvedere, CNBC, 28 Mar. 2026 The national price per gallon for regular unleaded is about $4. Robert Duffer, AJC.com, 27 Mar. 2026 At the national level, the average price for regular unleaded gasoline is now about four dollars a gallon, but in parts of California it’s already reached six dollars, or even higher. Hannah Jocelyn, New Yorker, 25 Mar. 2026 See All Example Sentences for unleaded

Word History

First Known Use

1811, in the meaning defined at sense 1

Time Traveler
The first known use of unleaded was in 1811

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Cite this Entry

“Unleaded.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unleaded. Accessed 4 Apr. 2026.

Kids Definition

unleaded

adjective
un·​lead·​ed ˌən-ˈled-əd How to pronounce unleaded (audio)
: not mixed with lead or lead compounds
unleaded gasoline
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