marginal

/M AA1 R JH AH0 N AH0 L/
noun
  1. 1

    Something that is marginal.

  2. 2

    A constituency won with a small margin.

adjective
  1. 1

    Of, relating to, or located at or near a margin or edge; also figurative usages of location and margin (edge).

    โ€œIn recent years there has been an increase in violence against marginal groups.โ€

  2. 2

    Determined by a small margin; having a salient characteristic determined by a small margin.

  3. 3

    Pertaining to changes resulting from a unit increase in production or consumption of a good.

Source: https://en.wiktionary.org/wiki/marginal