Relating to or situated at the edge or margin of something. The marginal notes in the book provided additional insights into the author's thoughts.
Of secondary or minor importance; not central. The issue was considered marginal and was not discussed in the main meeting.
Barely sufficient or adequate. The company's profits were marginal, just enough to keep it afloat.
Relating to or affected by economic or social disadvantage. The community was located in a marginal area with limited access to resources.