The opposite of being more collegial is being less cooperative, unfriendly, or unsociable. In a work environment, being less collegial can have a negative effect on team dynamics and productivity. When colleagues are not collegial, it can result in an unfriendly work environment where communication is limited, and collaboration is difficult. Leaders who foster a culture of cooperation and collegiality often have teams that are more productive, innovative and motivated. Working together with colleagues, sharing ideas and knowledge, and building a supportive community is the essence of collegiality. When teams lack collegiality, it can lead to isolation, animosity, and ultimately, a decrease in overall team effectiveness.