Madhara yasiyolengwa, Uharibifu wa nyongeza, au Uharibifu wa Ziada (kutoka Kiingereza: Collateral damage) ni istilahi ya kutaja tukio linatokea katika hali ambayo siyo iliyokusudiwa. Istilahi hii hasa hutumika kijeshi katika hali ya kutaja uharibifu wa mali za raia au watu majeruhi ambao si wapiganaji, yaani, raia ya wa kawaida tu. Mfano ni wakati wa matumizi ya silaha kama mzinga, bomu au kombora dhidi ya wanajeshi adui nyumba za kiraia au watu raia wanaweza kupigwa ama kwa kosa au kutokana na ukali wa mlipuko. collateral damage. Merriam-Webster. Beyond Precision: Issues of Morality and Decision Making in Minimizing Collateral Casualties Archived 5 Julai 2010 at the Wayback Machine., ACDIS Occasional Paper by Lt. Col. Dwight A. Roblyer USAF Intelligence Targeting Guide - Attachment 7 : Collateral Damage The Culture of Collateral Damage: A Genealogy by Glen Perice, The Journal of Poverty, Volume 10, No. 4, 2007 Army Technology Archived 25 Februari 2007 at the Wayback Machine. Air Force Law Review, Wntr, 2005 by Jefferson D. Reynolds The Faces of “Collateral Damage” by Charlie Clements, Friends Journal, April 2003 Archived 17 Februari 2007 at the Wayback Machine.