Synonyms for clay

loess, argil, loam, kaolin, earth, till, wacke, slip, bole, argillaceous earth, marl, potter's clay, clayware, green pottery, terra cotta, green brick, china clay, porcelain clay, adobe, Play-Doh (trademark); see also mud, pottery.

flawed, ignoble, overestimated, weak; see faulty, inadequate 1.