obstruction

noun

1. any structure that makes progress difficult

   noun.artifact

   Synonyms impediment impedimenta obstructer obstructor

   Source: WordNet 3.0

2. the physical condition of blocking or filling a passage with an obstruction

   noun.state

   Synonyms blockage

   Source: WordNet 3.0

3. something immaterial that stands in the way and must be circumvented or surmounted

   noun.cognition

   Examples

   The filibuster was a major obstruction to the success of their plan.

   Synonyms obstacle

   Source: WordNet 3.0

4. the act of obstructing

   noun.act

   Examples

   Obstruction of justice.

   Source: WordNet 3.0

5. getting in someone's way

   noun.act

   Source: WordNet 3.0

6. The act of obstructing, or state of being obstructed.

   noun

   Source: webster1913