submarginal

About 0.10 uses per million words.

Meaning

1. adjective Less than, or worse than, marginal. Not meeting even the minimum standard of quality.
2. adjective Below a margin.

Similar words

lunules substandard suboptimal sub-optimal unmarginal less-than-stellar marginal submediocre less than stellar nonmarginal

Often followed by

land band cell lands row line spots cells and