marginal

英['mɑːdʒɪn(ə)l] 美['mɑrdʒɪnl]

1. at or constituting a border or edge;

"the marginal strip of beach"

2. of questionable or minimal quality;

"borderline grades"

"marginal writing ability"

3. of a bare living gained by great labor;

"the sharecropper's hardscrabble life"

"a marginal existence"

4. just barely adequate or within a lower limit;

"a bare majority"

"a marginal victory"

5. producing at a rate that barely covers production costs;

"marginal industries"

"marginal land"

6. of something or someone close to a lower limit or lower class;

"marginal abilities"