marginal

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

The marginal area at the edge of the salt-marsh has its own plants.

In recent years there has been an increase in violence against marginal groups.

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

There were more marginal notes than text.

The early pages had marginal notes most of which were lost when rats nibbled away the manuscript edges.

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

Monmouthshire is a Welsh county marginal to England.

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

His writing ability was marginal at best.

Having reviewed the test, there are two students below the required standard and three more who are marginal.

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

He farmed his marginal land with difficulty.

Something or somebody that is marginal.

[…] discusses those who belong to the discipline's dominant cults, the mainliners, and their relations with the marginals and mavericks.

“We need a saint or some other symbol that will serve to anchor our faith into the foreseeable future. I have watched and waited for a saint but none showed up—not even a marginal saint. Mary is the first one, and we must not allow her ...

A constituency won with a small margin.