thwart, stifle, derail, hinder, frustrate, hamper, scuttle, squelch, impede, upend, cripple, undermine, spur, scupper, negate, dampen, quash, disrupt, stave off, hobble, undercut, overwhelm, threaten, smother, imperil, curtail, complicate, sidestep, neutralize, inhibit, unsettle, forestall, constrain, circumvent, crimp, steamroll, elude, deter, discourage, weaken, confound, deflate, paralyze, blunted, hamstringing, fend, eviscerate, obstruct, jeopardize, counteract, stoke, ignite, nullify, quell, fluster, flummox, defang, bedevil, restrict, spark, unnerve, dooms, devastate, outlast, overpower, reignite, topple, snuff, bolster, undo, stalling, decimate, overshadow, outmaneuver, backfire, distract, deflect, befuddle, vanquish, propel, ensnare, spoil, dodge, outgun, deprive, discombobulate, muster, clobber, preempt, outmanoeuvre, push, outflank, limiting, trump, destroy, intimidate, prolong, stem, outwait, obliterate, evade, hasten

bottleneck, check, filibuster, hang, stonewall

forbid, foreclose, forestall, obstacle, obstruction, position, preclude, prevent, situation

block, blockade, embarrass, hinder, obstruct, stymy