Home › Words › U › unfuelunfuelunfuel · verb — to remove fuel from.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, unfuel ranks #17,004 of 43,053 for Qualifying.EtymologyFrom un- + fuel.verbTo remove fuel from.e.g.“On 20th July, during the third attempt, the launch was pulled with 3 min 5 sec to go and it was decided to unfuel the rocket and try again later.” — 2007, The Rebirth of the Russian Space Program: 50 Years After Sputnik, New Frontiers:Definitions & examples from Wiktionary (CC BY-SA 3.0).