noun
the way back; return path
Refers to the route or path taken when returning from a destination. Often used in contrast with 行き道 (the way there).
戻り道で雨に降られた。
I got caught in the rain on the way back.
行き道はバスだったけど、戻り道は歩いてみよう。
I took the bus on the way there, but let's try walking on the way back.
Compound of 戻り (modori, 'return', noun form of 戻る) and 道 (michi, 'road, path').