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unleaded

American  
[uhn-led-id] / ʌnˈlɛd ɪd /

adjective

  1. (of gasoline) containing no tetraethyllead; lead-free.

  2. Printing. not separated or spaced with leads, as lines of type or printed matter.


noun

  1. an unleaded product, especially gasoline that contains no tetraethyllead.

unleaded British  
/ ʌnˈlɛdɪd /

adjective

  1. (of petrol) containing a reduced amount of tetraethyl lead, in order to reduce environmental pollution

  2. not covered or weighted with lead

  3. printing (of lines of type, etc) not spaced or separated with leads; solid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. petrol containing a reduced amount of tetraethyl lead

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of unleaded

First recorded in 1605–15; un- 1 + lead 2 + -ed 3

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The average price of a gallon of unleaded has fallen 19.5 cents over the past week, to $4.256 a gallon on Monday morning.

From Barron's Jun. 1, 2026

According to motoring firm the RAC, the average price of unleaded petrol reached 152.52p a litre on Monday, the highest since the start of the war.

From BBC May 20, 2026

The motoring organisation also said unleaded was likely to increase to at least 160p a litre in the coming weeks unless there was a "dramatic and sustained drop" in the price of oil.

From BBC May 19, 2026

The average national price for a gallon of regular unleaded gas was at $4.42 late Friday morning, according to GasBuddy.

From MarketWatch May 1, 2026

This is what Collingwood read as he sat, coffee-cup in one hand, newspaper in the other—staring at the lines of unleaded type:

From The Talleyrand Maxim by Fletcher, J. S. (Joseph Smith)

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