Home › Words › U › unpromiseunpromiseunpromise · noun — lack of promise; poor prospects; unpromising outlook.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, unpromise ranks #9,597 of 43,295 for Qualifying.EtymologyFrom un- + promise.nounLack of promise; poor prospects; unpromising outlook.e.g.“So I was a writer of early unpromise. All my stories from the age of twelve until I was at least twenty-two were pretty bad.” — 2004, Ray Bradbury, Steven L. Aggelis, Conversations with Ray Bradbury, page 25:verbTo revoke or annul (something promised before).e.g.“Promises are no fetters: with that tongue Thy promise past, unpromise it again.” — 1605, George Chapman, All Fools:Definitions & examples from Wiktionary (CC BY-SA 3.0).