a roller coaster

a roller coaster

a situation which changes suddenly and often between being good and being bad
Usage notes: A roller coaster is a type of small railway in an amusement park which travels very quickly climbing up and down hills.
The Norwegian stockmarket has been on a roller coaster during the past 18 months. What the book does describe very well is the emotional roller-coaster of puberty.
See also: coaster, roller
References in periodicals archive ?
What we're experiencing is a roller coaster renaissance,'' he said.
And I thought, wouldn't it be great if you could combine that with a roller coaster.
Obviously, we're hoping it's a roller coaster of some kind,'' Sisk said earlier in the week.
Space Mountain (Disneyland) Great concept: a roller coaster in the dark.
Sandra Aguilar, 28, and her soon-to-be husband Rene Scolero, 32, both of Costa Mesa, sat with the 25 other anxious couples waiting in a roller coaster car, ready to say their ``I do's.
You have traveled by plane, train or bus to get here - here being Santa Cruz, San Francisco, San Jose, New York, New Jersey, Seattle, Vancouver, Philadelphia, Cincinnati, Florida and anyplace else that boasts a roller coaster worth riding.
nl, Holland's biggest leisure site, is looking for a roller coaster tester.
Washington, July 21 ( ANI ): No foul play has been detected in the death of a woman who fell from a roller coaster at Six Flags Over Texas, based on an initial investigation by authorities.
A roller coaster that was destroyed and partly submerged in the ocean by Hurricane Sandy is not to be used by the authorities as a tourist attraction.
This inspired Bob Rogers, a museum and theme park designer at BRC Imagination Arts in California, to design a roller coaster that would give riders a similar experience: eight seconds of weightlessness.
Police investigators have detected a crack on the wheel axle shaft of a roller coaster which had been operated alternately with the roller coaster involved in a fatal accident at Osaka's Expoland amusement park in May, police officials said Sunday.
VALENCIA -- For psychologist Linda Bortell, a few minutes on a roller coaster can be a cure for the stresses of modern living.
A collaboration with psychologist Cliff Arnall found that variety of movements, speed and controlled fear are all major factors in making a roller coaster successful.
My big sister wanted me to get on a roller coaster, but when I saw it, I didn't want to.
The EFAA report on roller coaster safety observed that "activities like being hit with a pillow, jumping on a rope, or falling on an exercise mat can all create much higher peaks of g-forces than a roller coaster.