Formal:
* Obedient: This word implies unquestioning compliance and submission to authority.
* Compliant: This word suggests a willingness to follow rules and instructions.
* Dutiful: This word emphasizes a sense of responsibility and commitment to fulfilling one's obligations.
* Submissive: This word suggests a willingness to yield to the authority of others.
Informal:
* Docile: This word suggests a passive and easy-going nature, willing to follow directions without resistance.
* Amenable: This word implies a willingness to cooperate and be agreeable.
* Tractable: This word suggests someone who is easily managed and controlled.
* Responsive: This word implies a willingness to react positively to instructions.
Other options:
* Cooperative: This word emphasizes working together with others to achieve a common goal.
* Disciplined: This word suggests someone who is self-controlled and follows rules.
* Responsible: This word implies someone who takes ownership of their actions and follows through on their commitments.
The best word to use will depend on the context and the specific meaning you want to convey.