Uncooperative (adjective)

1. Not willing or eager to cooperate or work together with others.
2. Not being helpful or cooperative.

Origin:

From un- + cooperative, ultimately from latin cooperare, "to work together".

Examples:

1. The suspect was uncooperative during the investigation.
2. The team member was uncooperative during the project.
3. The child was uncooperative during the examination.
4. The patient was uncooperative with the medical staff.
5. The witness was uncooperative during the trial.