Antonyms of adj unleaded

2 senses of unleaded

Sense 1
unleaded (vs. leaded), leadless -- (not treated with lead; "unleaded gasoline")

leaded (vs. unleaded) -- (treated or mixed with lead; "leaded gasoline"; "leaded zinc")
        => antiknock, antiknocking -- (suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating")

Sense 2
unleaded -- (not having leads between the lines)

INDIRECT (VIA unspaced) -> spaced -- (arranged with spaces between; often used as a combining form; "widely spaced eyes")

Similarity of adj unleaded

2 senses of unleaded

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

Sense 2
unleaded -- (not having leads between the lines)
       => unspaced (vs. spaced) -- (arranged without spaces between)