bumpy
adjective uk/ˈbʌm.pi/ us/ˈbʌm.pi/
颠簸的
not smooth
We drove along a narrow, bumpy road. 我们行驶在崎岖不平的小路上。
It might be a bumpy flight (= an uncomfortable and rough flight) because there's a lot of air turbulence ahead. 这次飞行可能会很颠簸，因为前方有很多气流。
Idiom
have a bumpy rideidiom informalC2 经历困难；处境艰难
to have a difficult time
She's had a bumpy ride at work over the last few months. 过去的几个月里，她在工作上很不顺利。