1. to block, hinder, or prevent the achievement of a final outcome or conclusion
The unexpected delays will obstruct the end result of the project.
Os atrasos inesperados vão obstruir o resultado final do projeto.
2. to interfere with or impede the completion of a goal or objective
Political disagreements obstruct the end result of the negotiations.
Os desentendimentos políticos obstruem o resultado final das negociações.