不通行的
... impassable adj. 不能通行的;无路可通的 unpassable adj. 不通行的;不可逾越的 impassably adv. 不能通行地;无法通行地 ...
不能通过的
不通行地沟
But in the 1990s Gilder became convinced that the speed of light would be the final unpassable barrier governing the pace of all digital technology.
FORBES: Digital Rules