1.at or constituting a border or edge;
the marginal strip of beach
2.of questionable or minimal quality;
borderline grades
3.of a bare living gained by great labor;
the sharecropper's hardscrabble life
4.just barely adequate or within a lower limit;
a bare majority
5.producing at a rate that barely covers production costs;
marginal industries
6.of something or someone close to a lower limit or lower class;
marginal abilities