baffle balk bankruptcy blast block bouleversement brave break up breakage breakdown bugger challenge checkmate circumvent collapse confound confront contravene convulsion counter counteract countermand counterwork crack-up cripple crippling cross damage dash de-energize debilitate defeat defy destroy destruction detriment dilapidation disable disablement discomfit disconcert discountenance disenable dish disrepair disrupt downfall drain elude encroachment enfeeble fall flummox foil frustrate hamper hamstring harm hinder hobbling honeycomb hors de combat hurt hurting impairment inactivate incapacitate incapacitation infringement injury inroad kibosh knock the chocks lame loss maim maiming mayhem mine mischief mutilation nonplus obstruct overthrow overturn perplex prostration put queer queer the works ruin ruination ruinousness sap scathe scotch sickening spike spoil spoiling stonewall stump subversion subversiveness subvert thwart treachery treason undermine undermining unfit upheaval upset weaken weakening wing wreck wreckage wrecking