unleaded

[uhn-led-id]

adjective

(of gasoline) containing no tetraethyllead; lead-free.
Printing. not separated or spaced with leads, as lines of type or printed matter.

noun

an unleaded product, especially gasoline that contains no tetraethyllead.

Nearby words

  1. unlawful,
  2. unlawful assembly,
  3. unlax,
  4. unlay,
  5. unlead,
  6. unlearn,
  7. unlearned,
  8. unlearnt,
  9. unleash,
  10. unleavened

Origin of unleaded

First recorded in 1605–15; un-1 + lead2 + -ed3

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for unleaded

unleaded

adjective

(of petrol) containing a reduced amount of tetraethyl lead, in order to reduce environmental pollution
not covered or weighted with lead
printing (of lines of type, etc) not spaced or separated with leads; solid

noun

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

Word Origin and History for unleaded

unleaded

adj.

1610s, from un- (1) "not" + leaded (see lead (n.)). In reference to gasoline, from 1965.

Online Etymology Dictionary, © 2010 Douglas Harper