backseat
n. countablen. the seat in the back of a car or vehicle. It is also used to describe a position where you have less power or control than someone else.
n. the rear seat of a vehicle; figuratively, a position of secondary importance or reduced influence.
The children are sitting in the backseat of the car.
After the new manager arrived, I had to take a backseat in the decision-making process.
While the lead scientist directed the laboratory's primary research, her administrative duties often took a backseat to the urgent demands of the ongoing clinical trials.
Often used in the idiomatic phrase 'take a backseat' to describe yielding control to others.
he is a back seat driverhe is a backseat driverIn the idiomatic sense of someone giving unwanted advice, 'backseat' is typically written as a single word.