1. Any structure that makes progress difficult
   - obstructor, obstructer, impediment, impedimenta 
2. The physical condition of blocking or filling a passage with an obstruction
   - blockage 
3. Something immaterial that stands in the way and must be circumvented or surmounted
   "the filibuster was a major obstruction to the success of their plan"
   - obstacle 
4. The act of obstructing
   "obstruction of justice" 
5. Getting in someone's way

Derived forms: obstructions

See also: obstruct

Type of: balk, baulk [Brit], check, construction, deterrent, handicap, hinderance, hindrance, impediment, interference, maneuver [US], manoeuvre [Brit, Cdn], physical condition, physiological condition, physiological state, play, structure

Encyclopedia: Obstruction

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