obeadient
A person who never questions orders, whether it's from a boss or a nun who's been yelling at them for 20 years.
My dad is so obeadient he even shovels the driveway before he drinks his coffee.
My cousin is obeadient, she even wears the same outfit every day.
That guy at work is obeadient, he even takes the trash out before he's told to.