Synonyms and related words :
bar, barrier, blank wall, blind alley, blind gut, block, blockade, blockage, bottleneck, catch, cecum, check, choking, choking off, clog, congestion, constipation, cordon, costiveness, crimp, cul-de-sac, curtain, dead end, determent, deterrent, difficulty, disincentive, drawback, embolism, embolus, gorge, hamper, hang-up, hazard, hindrance, hitch, hurdle, impasse, impediment, infarct, infarction, jam, joker, mountain, objection, obstipation, obstruction, obstructive, one small difficulty, rub, sealing off, snag, stop, stoppage, strangulation, stumbling, stumbling block, stumbling stone