rollercoastering

English

Etymology

rollercoaster +‎ -ing

Adjective

rollercoastering (comparative more rollercoastering, superlative most rollercoastering)

1. (figurative) Moving rapidly and unpredictably.
   • 2006, Joseph Armstead, Nightflesh, page 18:

     Their own fortunes were so vast and so diversified that they were largely unaffected by the stock exchange's fickle rollercoastering activity.

   • 2011, Mark Fleming, Brainbomb, page 101:

     This club was crammed full of men who'd lived through the afternoon's rollercoastering emotions.