Having or showing dogged determination not to change one's attitude or position on something, especially in spite of good arguments or reasons to do so.
They are constantly fighting with the person or feel like that person is making them change as a person.
Answer:
A system is a group of individual parts that work together to form a unified whole. ... The final product or service provided by a system. Feedback loop. A process of monitoring outputs to determine whether or not the system is working.
Lack of knowledge of disease