multilateral adjective 3noun 1forms 1 adjective3 •Having many physical sides. •Involving three or more parties or nations.Canada has continued to work within this agency to promote a multilateral solution to the problems of narcotrafficking and narcoterrorism. — 1993 •Having many sides or points of view. noun1 •A group with representatives from three or more parties or nations. formsmultilaterals
