Torrential (adjective)

Describing heavy, sustained rainfall or a large volume of water flowing quickly and forcefully.

Origin:

From the latin word "torrentem" meaning a rushing stream or a violent flow of water.

Examples:

1. The streets flooded during the torrential downpour.
2. The river was in full spate due to the torrential rain.
3. The storm brought with it torrential winds and heavy rain.
4. The hikers were caught in a torrential rainstorm.
5. The dam broke due to the torrential water flow.