Definitions

1. noun

The rear seat of a vehicle, especially a car.

“She sat in the backseat while her brother drove.”

2. verb

To place (someone) in the rear seat of a vehicle, especially to restrict their freedom of movement or action.

“He backseated his sister to make her sit in the back.”

3. verb

To make (something) less important or influential, often in a subtle or indirect way.

“The new policy backseated the old one, making it harder to implement.”