roller coasternoun
uk/ˈrəʊ.lə ˌkəʊ.stər/us/ˈroʊ.lɚ ˌkoʊ.stɚ/[ C ] an exciting entertainment in an amusement park, like a fast train that goes up and down very steep slopes and around very sudden bends
[ S ] a situation which changes from one extreme to another, or in which a person's feelings change from one extreme to another:
He was on an emotional roller coaster for a while when he lost his job.
Thesaurus: synonyms and related words
Carnival, fairground & circus
- acrobatics
- amusement arcade
- amusement park
- big dipper
- big top
- big wheel
- coconut shy
- contortionist
- custard pie
- Dodgem (car)
- fairground
- Ferris wheel
- Indian club
- juggle
- juggler
- merry-go-round
- midway
- Punch and Judy show
- trapeze
- unicycle
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Difficult situations and unpleasant experiences