Definition of roller-coaster
(Entry 1 of 2)
: marked by numerous ups and downs
an entertainer's roller-coaster career
roller coaster
nounDefinition of roller coaster (Entry 2 of 2)
1 : an elevated railway (as in an amusement park) constructed with sharp curves and steep inclines on which cars roll
2 : something resembling a roller coaster especially : behavior, events, or experiences characterized by sudden and extreme changes an emotional roller coaster
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Time Traveler for roller-coaster
The first known use of roller-coaster was in 1883
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