There are multiple definitions - click on the translation that matches your context.

blokować, utrudniać (postępowanie sądowe)

czasownik

full

obstruct

verb

Definitions of obstruct

to block or get in the way of

These laws protect a property owner from having his/her view obstructed by growing trees.

to deliberately try to stop something from happening

Staff at the newspaper attempted to obstruct the police investigation into telephone hacking by deleting millions of emails.