unleaded /ˌʌnˈlɛd.əd/adjective 4noun 3forms 1 adjective4 •Without lead. •Containing no more than 0.05 grams of lead per gallon. •(US, slang) Decaffeinated.I order a draft beer and a decaf coffee for Cha. The bartender tells me in a nice way they don't have unleaded coffee. — 1999 •(Australia, slang) Having low alcohol content.Richie Pace ordered an unleaded beer. — 2015 noun3 •An unleaded fuel.Because one of the unleadeds just might turn out to be the right gasoline for your car. By right, I mean the one that gives you the best balance between price and performance. — 1976 •(US, slang) Decaffeinated coffee.And while you may enjoy your morning coffee buzz, caffeine is active in the bloodstream for up to nine hours, so it is best to switch to unleaded after noon. — 2012 •(Australia, slang) Low-alcohol beer. formsunleadeds
