marginal

Of, relating to, located at, or constituting a margin, a border, or an edge.

Being adjacent geographically.

Written or printed in the margin of a book.

Barely within a lower standard or limit of quality.

Having to do with enterprises that produce goods or are capable of producing goods at a rate that barely covers production costs.

Relating to commodities thus manufactured and sold.

Relating to or located at the fringe of consciousness.

One that is considered to be at a lower or outer limit, as of social acceptability.

Pertaining to a margin; situated on or near the margin; specifically, written or printed in the margin of a page: as, a marginal note or gloss.