nonleaded

3.2

Fuel for cars that has no added lead

adjective
/ˌnɒnˈliːdɪd/

Specialized

: sin plomo

Many cars today only use nonleaded gasoline for environmental reasons.

Examples

The pump was clearly marked for nonleaded fuel only.
I always choose nonleaded gasoline for my car.
After regulations changed, the refinery stopped producing anything but nonleaded gasoline.
The nonleaded fuel is better for the environment.
Many cars today only use nonleaded gasoline for environmental reasons.
The pump was clearly marked for nonleaded fuel only.
After regulations changed, the refinery stopped producing anything but nonleaded gasoline.

Synonyms

unleaded

vsnonleaded

6 3.2

Not containing lead, used as fuel or paint

focuses on absence of specific added lead compounds in gasoline

lead-free

vsnonleaded

1 3.5

Does not contain the metal lead

emphasizes absence of added specific lead additives in gasoline

leadless

vsnonleaded

4.8

Not containing or treated with lead

is specific to gasoline and stresses absence of particular added lead compounds

Antonyms

leaded

7.0

Containing a heavy soft metal found in old pipes and car fuel

How Leaded

leaden

1 6.6

leaded

7.0

nonleaded

Specialized

3.2

Surface Forms

nonleaded positive

Morphology

nonleaded = leaded (transparent) = non + lead + ed

The prefix 'non-' clearly negates the adjective 'leaded', indicating the absence of lead.

Etymology

Nonleaded breaks into non- meaning 'not' and leaded meaning 'with lead', so it is easy to see the parts of the word. So nonleaded gasoline simply means fuel that is 'not with lead' or 'lead-free', which is why people use it for safer cars and health.