OBSTRUCTION

n. 1 obstacle, barrier, bar, check, stumbling-block, hindrance, impediment, hurdle, hitch, snag, catch, bottleneck, limitation, constraint, restriction The fallen trees created an almost impassable obstruction 2 checking, stopping, cessation, proscription, forbidding, forbiddance; hindering, impeding, limiting, halting, slowing The obstruction of the bill's passage can be blamed on the Tories