noun which may take the genitive case particle 'no'
unpaved; unsurfaced
Describes roads, paths, or surfaces that are not covered with asphalt, concrete, or similar paving.
この先は未舗装の道が続いている。
The road ahead is unpaved.
未舗装の
I parked the car in an unpaved parking lot.
Compound of 未 (mi, 'not yet') and 舗装 (hosō, 'paving').