0 a situation in which progress is impossible, especially because the people involved cannot agree:
The dispute had reached an impasse, as neither side would compromise.
1 a point in a process at which further progress is blocked, esp. by disagreement:
We have reached an impasse in the negotiations -- neither side will budge.
2 a situation in which further development is impossible:
be at/remain at an impasse With negotiations at an impasse, analysts warn the uncertainty may harm supermarket stocks.
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.