Noun > Roller coaster

Noun > Roller coaster


1 : a ride at an amusement park which is like a small, open train with tracks that are high off the ground and that have sharp curves and steep hills

We went for a ride on the roller coaster.

a roller-coaster ride

2 : a situation or experience that involves sudden and extreme changes

The divorce was an emotional roller coaster for both of them.

He’s had a roller-coaster career. (=a career with many ups and downs)