There are multiple definitions - click on the translation that matches your context.

chętny do współpracy

przymiotnik

full

cooperative

adjective

Definitions of cooperative

English

relating to an organization or business that is owned and managed by the people who work in it, with the profits (=money made after paying the costs) or benefits shared among them

The real life application of a cooperative business model is helping New Zealand's credit unions compete.

English

relating to people or organizations that are willing to help or do what is asked of them

The layout of individual classrooms off long corridors doesn't fit with the current cooperative approach toward education.