unleaded petrol

English Thesaurus

1. gasoline that has not been treated with a lead compound (noun.substance)

hypernym	:	gas, gasolene, gasoline, petrol,
definition	:	a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines (noun.substance)

antonym	:	leaded gasoline, leaded petrol,
definition	:	gasoline treated with a lead compound to reduce motor knocks (noun.substance)

antonym	:	leaded gasoline, leaded petrol,
definition	:	gasoline treated with a lead compound to reduce motor knocks (noun.substance)