Definition of roller-coaster
- an entertainer's roller-coaster career
We went for a ride on the roller coaster.
The divorce was an emotional roller coaster for both of them.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'roller coaster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: 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
: a situation or experience that involves sudden and extreme changes
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