unleaded petrol unleaded gasoline • unleaderly · · · Info · Definitions · Synonyms · Characters · · unleaded petrol · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) gasoline that has not been treated with a lead compound. Synonyms: unleaded gasoline, unleaded petrol. · · Noun Definition 1 Synonyms · · · unleaded gasoline · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075