One who
designs or acts in a way that obstructs others, making it difficult or impossible to do what needs to be done. Frequently uses
conflict of interest to obstruct others. Also known as an asshole or
duh-weeb, and most likely proud of it.
When you have to drive six blocks just to go around the corner, it's a good sign that the engineer who planned the city's
one-way streets was an obstructionist.
For more examples, see bureaucracy,
committee mentality,
legislator, attorney, and corporation.