Antonyms of adj antiknocking

1 sense of antiknocking

Sense 1
antiknock, antiknocking -- (suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating")

INDIRECT (VIA leaded) -> unleaded, leadless -- (not treated with lead; "unleaded gasoline")

Similarity of adj antiknocking

1 sense of antiknocking

Sense 1
antiknock, antiknocking -- (suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating")
       => leaded (vs. unleaded) -- (treated or mixed with lead; "leaded gasoline"; "leaded zinc")

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