"roller coaster" | Definition and Related Words

Noun

Anything characterized by abrupt and extreme changes (especially up and down) (synset 114003271)
"the economy has been on a roller coaster all year"

is a type of: sturm und drang, turbulence, upheaval - a state of violent disturbance and disorder (as in politics or social conditions generally)
Elevated railway in an amusement park (usually with sharp curves and steep inclines) (synset 104109500)
is a type of:
- el, elevated, elevated railroad, elevated railway, overhead railway - a railway that is powered by electricity and that runs on a track that is raised above the street level
- ride - a mechanical device that you ride for amusement or excitement
subtypes: hypercoaster - a roller coaster that goes up 200 feet or higher and can catapult riders from 0 to 70 mph in 4 seconds by motors originally designed to launch rockets

same as: big dipper, chute-the-chute