Thesaurus / low grade
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLE SENTENCES FROM THE WEB

What is the line of value separating a low grade from a high grade of precious metal ore?
THE BUSINESS OF MININGARTHUR J. HOSKIN
The lower grade noil is sold to carpet manufacturers and various users of low grade stuff.
In its upper valley near Steynsdorp are gold-fields, but the reefs are almost entirely of low grade ore.
Later we found that this company had a market for low grade stump veneer.
In Madagascar, the mammalian life was small and of low grade, so the gigantic æpyornis became the very biggest of all known birds.
FALLING IN LOVEGRANT ALLEN
But I like to hear what is low grade enough for me to appreciate.
DESERT CONQUESTA. M. CHISHOLM
As a rule the mental defectives and epileptics cared for in institutions are of low grade.
There are vast rice-eating populations in China and India, who are a low grade of men, morally and physically.
Table 32 shows the results of crosses between Cochins (high grade of boot) and Silkies (low grade).
The ancient diggings are still to be seen, but the "pay dirt" is of such a low grade that it is not worth while to work it.