A cohesive group refers to a group of people who work well together and are united in their goals and values. They have a strong bond and support each other, which helps them function effectively as a team. Full definition
We managed to create a really cohesive group of players where everyone played and fought for each other. (espnfc.com)
And the perception was that the more cohesive a group the less its individual members are thought to have independent thought. (scientificamerican.com)
A second experiment revealed that subjects did not hold members of a very cohesive group responsible for their individual actions. (scientificamerican.com)