groundswell

/ˈɡraʊndˌswɛl/
noun
  1. A sudden, strong increase in public opinion or feeling about something.
    • The politician faced a groundswell of anger after the controversial decision.
    • There was a groundswell of support for the new park in the neighborhood.
    • A groundswell of enthusiasm for the charity event led to record donations.
  2. A large, deep wave that moves slowly and steadily, often caused by an earthquake or distant storm.
    • The surfer waited for the perfect groundswell to ride to shore.
    • The sailors felt a groundswell beneath the boat long before the storm arrived.
    • A powerful groundswell from the earthquake caused damage along the coast.
Antonyms
What does "groundswell" mean? | whatsthatwordmean | whatsthatwordmean