"obstructs" in the verb sense
1. obstruct, blockade, block, hinder, stymie, stymy, embarrass
hinder or prevent the progress or accomplishment of
"His brother blocked him at every turn"
2. obstruct, obturate, impede, occlude, jam, block, close up
block passage through
"obstruct the path"
3. obstruct, block
shut out from view or get in the way so as to hide from sight
"The thick curtain blocked the action on the stage"
"The trees obstruct my view of the mountains"
Source: WordNet® (An amazing lexical database of English)
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