Plummeted

The treatment's acceptability plummeted by nearly 96% that year after researchers discovered disfiguring side effects.

Tom's grades soon plummeted.

Their readership plummeted to almost zero.

The numbers of elephants have quickly plummeted.

Algerian currency reserves have significantly plummeted in the last five years.

The Berber-speaking population quickly plummeted with the arrival of the first French settlers.

The price of rice has plummeted.

Cross-border trade has plummeted during the recession.

Temperatures have plummeted.

I looked on as the car plummeted.