A type of company that is owned partially or wholly by its employees, customers or tenants.
Ready to work with another person or in a team; ready to cooperate.
Involving cooperation between individuals or parties.
Relating to a cooperative or cooperatives.
Difficult to treat (of a medical condition).
Difficult to deal with, solve, or manage.
(of a mathematical problem) Not able to be solved.
Not tractable; not able to be managed, controlled, governed or directed.
Stubborn; obstinate.