An impassable barrier is a barrier that is too difficult or impossible to cross. A wall that is impassable is too high or too thick to get through.
The bridge was destroyed by a storm, and so the barrier to the city was now impassable.
The war has caused so much destruction that the barrier to the city is now impassable.
adjective
incapable of being passed
Synonyms:
1
It was impassioned of data processing and electronics.
2
Most of the upper floors are impassable.
3
That simply wasn't the source of the impasse.
4
For normal cars the track is impassable.
5
The outcry was impassioned and predictably hostile.
6
Much of the marsh and bayous remained impassable.
7
Selangor will regress if water impasse continues.
8
I apologize to all for the impasse and inconvenience.
9
He is an aloof, impassive, and a ruthless man.
10
He is an aloof, impassive, and ruthless man.