adjective characterized by or having authority vested equally among colleagues; `collegial harmony`; `a tendency to turn from collegial to one-man management`- Merle Fainsod Found on https://www.encyclo.co.uk/local/20974
collegiate. · of or characterized by the collective responsibility shared by each of a group of colleagues, with minimal supervision from above. Found on https://www.infoplease.com/dictionary/collegial