Noun has 2 senses

• obstructer(n = noun.person) obstructionist, obstructor, resister, thwarter - someone who systematically obstructs some action that others want to take;


Derived form verb obstruct₁

• obstructer(n = noun.artifact) impediment, impedimenta, obstruction, obstructor - any structure that makes progress difficult;


Derived form verb obstruct₂