Definition of marginal adjective from the Oxford Advanced American Dictionary

      

    marginal

     adjective
    adjective
    NAmE//ˈmɑrdʒənl//
     
     
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  1. 1small and not important synonym slight a marginal improvement in weather conditions The story will only be of marginal interest to our readers. The difference between the two estimates is marginal.
  2. 2 not part of a main or important group or situation marginal groups in society His grandfather spoke a marginal Native American language.
  3. 3[only before noun] written in the margin of a page marginal notes/comments
  4. 4(of land) that cannot produce enough good crops to make a profit