This is the 10355th most frequent Russian word.
быстрая
"Fast" or "quick" (feminine form).
Adjective describing the speed and performance of the car.
Машина была быстрая и легко обгоняла другие автомобили.
The car was fast and easily overtook other vehicles.
Adjective describing the swift response or action taken.
Она показала быструю реакцию на внезапные изменения.
She showed a quick reaction to sudden changes.
Adjective describing the rapid movement of the river's flow.