obstruction Synonyms

hindrance impediment obstacle obstructor impedimenta stop clog bar check blockage barrier block restriction restraint preclusion preventative prevention preventive problem resistance repression remora proscription pitfall opposition knag levee limitation nonfulfillment obstructing obstructer obstructionism obstructionist obstructive obturation obviation occludent occlusion oppilation retardation retardment tailback ball and chain shutdown roadblock bottleneck chokepoint hiccup glitch infarct