1.
interruption; suspension of service; being cut off
A state in which a train line, road, or line of communication cannot be used because of an accident, a disaster, or bad weather. Most often said of trains and phone lines.
Common collocations
- 不通になる: to be cut off, to stop running
- 全線不通: the whole line suspended
- 音信不通: out of contact, not heard from
- 不通区間: the section of line that is not running
Watch out
不通 is a homophone of 普通 (ordinary; local train). In a train announcement, 不通 means the line is not running, while 普通 is the stopping train. The verb 通じない says the same thing in everyday speech: 電話が通じない.