bar, barricade, block, brake, bridle, bring to a standstill, check, choke, circumscribe, congest, countervail, cramp, cripple, curb, debar, delay, disable, embar, encumber, estop, forbid, frustrate, halt, hamper, hamstring, handicap, hinder, impede, impedite, inhibit, interfere with, interrupt, intervene, limit, occlude, oppilate, preclude, prevent, prohibit, restrain, retard, slow down, snag, stall, stand in the way, stay, stem, stop, stop up, stymie, suppress, suspend, terminate, thwart, trammel, trap
associated concepts: obstruct a lawful authority, obstruct an investigation, obstruct justice, obstructing governmental administration
abrogate (annul), arrest (stop), balk, ban, bar (hinder), block, check (restrain), clog, condemn (ban), constrain (restrain), constrict (inhibit), contain (restrain), control (restrain), counter, curb, debar, defer (put off), delay, detain (restrain), deter, disadvantage, discontinue (break continuity), disrupt, estop, fight (counteract), foil, forbid, forestall, frustrate, halt, hamper, hinder, hold up (delay), impede, inconvenience, inhibit, interdict, interfere, interpose, interrupt, keep (restrain), lock, obturate, occlude, oppose, oppugn, preclude, prevent, prohibit, repulse, resist (oppose), restrain, restrict, shut, stall, stave, stay (halt), stem (check), stifle, stop, suppress, thwart, toll (stop), trammel, withstand
Burton's Legal Thesaurus. William C. Burton. 2006
v.To hinder; to get in the way of something; to block or impede.n.obstruction
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.