rápidamenteadverb
Rápidamente means quickly in English. It is an adverb.
- quickly
Ella se giró rápidamente.
She turned around quickly.
¡Salí de acá rápidamente!
Get out of here quickly!
Corre rápidamente a casa.
Run home quickly.
Él se decidió rápidamente.
He made up his mind quickly.