cooperative
co-op-er-a-tive
adjective
Willing to help or work together with others towards a shared goal.
"The children were very cooperative during the activity."
noun
A business or organisation owned and run jointly by its members.
"They bought their produce from the local cooperative."
Thesaurus
Synonyms: co-op, accommodative, noncompetitive, conjunctive, joint, concerted, conjunct, united, synergetic, collaborative, synergistic
Antonyms: uncooperative