0 something that makes progress, movement, or achieving something difficult or impossible: --
In a number of developing countries, war has been an additional impediment to progress.
1 something that makes progress or movement difficult or impossible: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.