high-octane

== English == === Etymology === From high +‎ octane. First use appears c. 1931 in the Oakland Tribune. === Pronunciation === === Adjective === high-octane (comparative higher-octane, superlative highest-octane) (automotive, engineering) Of fuel, having a high octane number, good antiknock characteristics; used in high-performance vehicles. Antonym: low-octane (figuratively, by extension) High-powered, energetic, forceful or dynamic. Antonym: low-octane (figuratively) Of a drink, highly intoxicating or caffeinated. ==== Translations ==== === Further reading === “high-octane adj.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present