1. To block, hinder, or prevent the completion or final stage of something
The construction debris continued to obstruct the finishing of the building.
Os escombros da construção continuavam a obstruir o acabamento do edifício.
2. To create an obstacle that delays the final touches or conclusion of a project
Bad weather may obstruct the finishing of the road renovation.
O mau tempo pode impedir o término da renovação da estrada.