adj, verb, slang ·Moderate ·College level

Definitions

Verb

1. 1
   simple past and past participle of lead (to add lead to) form-of, participle, past
2. 2
   simple past and past participle of lead (to guide, plus similar meanings) form-of, nonstandard, participle, past

Adjective

1. 1
   Held in place by strips of lead.
2. 2
   Having a lead, or leads
3. 3
   Containing or treated with the element lead.
4. 4
   Containing tetraethyllead.

   "Leaded gasoline is hard to find in some areas now."

5. 5
   caffeinated. informal

Adjective

1. 1
   (of panes of glass) fixed in place by means of thin strips of lead wordnet
2. 2
   treated or mixed with lead wordnet
3. 3
   having thin strips of lead between the lines of type wordnet

Synonyms

All synonyms

antiknockingcaffeinatedcaffeinatedfixedspaced

Antonyms

All antonyms

unleaded

Example

More examples

"Does anyone actually sell leaded gasoline anymore?"

Etymology

Etymology 1

From lead + -ed.

Etymology 2

lead + -ed

Related phrases

leaded lightleaded type

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.