Antonyms of adj nonleaded

1 sense of nonleaded

Sense 1
lead-free, nonleaded -- ((of gasoline) not containing tetraethyl lead; "lead-free gasoline")

INDIRECT (VIA unleaded) -> leaded -- (treated or mixed with lead; "leaded gasoline"; "leaded zinc")

Similarity of adj nonleaded

1 sense of nonleaded

Sense 1
lead-free, nonleaded -- ((of gasoline) not containing tetraethyl lead; "lead-free gasoline")
       => unleaded (vs. leaded), leadless -- (not treated with lead; "unleaded gasoline")