roller coaster

• roller coaster

roller coaster

Noun

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

Synonyms:

• roller coaster

Noun

elevated railway in an amusement park (usually with sharp curves and steep inclines)

Synonyms:

• roller coaster
• big dipper
• chute-the-chute