arrest, arrestation, arrestment, blockage, blocking, check, clogging, closing up, closure, constriction, cramp, delay, detainment, detention, fixation, foot-dragging, hampering, hindering, hindrance, holdback, holdup, impediment, inhibition, interference, interruption, let, negativism, obstruction, obstructionism, occlusion, opposition, repression, resistance, restraint, restriction, retardation, retardment, setback, squeeze, stranglehold, stricture, suppression