ObstructorWordNet Explorer

any structure that makes progress difficult

a thing constructed; a complex entity constructed of many parts

an obstruction (usually metal) placed at the top of a goal

a structure or object that impedes free movement

prevents access or progress

an obstruction in a pipe or tube

any obstruction that impedes or is burdensome

an obstruction that stands in the way (and must be removed or surmounted or circumvented)