hindrance blockage curtailment delay impediment opposition stoppage obstacle obstruction handicap block deterrent hurdle encumbrance bar snag barrier trammel drawback check inhibition difficulty restriction hitch restraint stop limitation fetter drag curb cramp crimp manacle holdback interference chain complication catch baulk balk clog shackles hiccup embarrassment inconvenience let setback burden hazard cumber brake prevention glitch millstone interruption facer impedance albatross hampering joker gridlock baggage lock inhibitor rejection recess recession regress regression retreat retrogression halt cessation reversion return defence defense rest slowness receding backsliding retrogradation disorganization disorder disorganisation downfall decline descent collapse crash downturn fall ruin slide slump breakdown disintegration downswing dwindling failure