roll·er-coast·er
ˈrō-lər-ˌkō-stər 
ˈrō-lə-ˌkō-
: marked by numerous ups and downs
an entertainer's roller-coaster career
roll·er coast·er
ˈrō-lər-ˌkō-stər
ˈrō-lē-ˌkō-
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
Examples of roller-coaster in a Sentence
Noun
We went for a ride on the roller coaster.
The divorce was an emotional roller coaster for both of them.
Recent Examples on the Web
Trefis Team, Forbes.com, 28 May 2025
If Game 2 is anything like Game 1 was, fans could be in store for another roller-coaster ride.
—Matt Levine, MSNBC Newsweek, 23 May 2025
Ricardo Klein, MSNBC Newsweek, 4 June 2025
For serious thrill seekers, SeaWorld San Diego also has a variety of roller coasters.
—Jan Wagner, San Diego Union-Tribune, 4 June 2025
See All Example Sentences for roller-coaster
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Adjective
As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index, less of a roller-coaster ride as evident in HQ Portfolio performance metrics.
—Trefis Team, Forbes.com, 28 May 2025
If Game 2 is anything like Game 1 was, fans could be in store for another roller-coaster ride.
—Matt Levine, MSNBC Newsweek, 23 May 2025
Noun
It's been quite the roller coaster for Durant since leaving the Golden State Warriors in the summer of 2019.
—Ricardo Klein, MSNBC Newsweek, 4 June 2025
For serious thrill seekers, SeaWorld San Diego also has a variety of roller coasters.
—Jan Wagner, San Diego Union-Tribune, 4 June 2025
See All Example Sentences for roller-coaster
Cite this Entry
“Roller-coaster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roller-coaster. Accessed 9 Jun. 2025.
Copy CitationKids Definition
roller coaster
noun
roll·er coast·er
ˈrō-lər-ˌkō-stər
ˈrō-lē-ˌkō-
: an elevated railway (as in an amusement park) with sharp curves and steep slopes on which cars roll
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