dead weight

bar block blockade burden drag encumbrance hindrance impedance impediment obstruction snag

cumbrance

advantage aid assistance help opening promotion support

clearance

barrier bottleneck burden defect deterrent difficulty disadvantage drawback flaw handicap hazard hitch hurdle inhibition obstacle red tape restriction setback snag stumbling block

bar barricade block blockage catch chain check clog cramp curb delay detriment drag encumbrance fault holdup load manacle millstone prohibition restraint retardation rub shackle stoppage stricture tie trammel wall

Catch-22 retardment road block

advantage aid assistance benefit blessing boon freedom help opening perfection strength

allowance clearance liberation permission

facilitation furtherance support