Definition

Describing a substance that does not contain lead or lead compounds, often used in reference to fuels or paints.

Example

Many cars now use unleaded gasoline to reduce pollution.

Conversation

Hey, did you fill up your car with unleaded gasoline?

Yeah, I always use unleaded — it's better for the engine.

That's smart! I heard it also helps the environment.

Exactly! Plus, it's usually cheaper than premium options.

Synonyms & Antonyms

Root Explanation

Unleaded → It is formed from "un-" (meaning not) and "leaded" (from the verb "lead" which comes from Old English "lædan", meaning to guide or carry). The word "unleaded" means not containing lead, particularly in reference to fuel that does not have lead additives.

Memory Tip

Think of 'not' ('un-') containing 'lead' — that's why unleaded means fuel without lead.

Visually Confused Words