6 adjectives to describe millstone

They were as peppercorns between the upper millstone and the nether, and the sound of the crunching was always in their ears, even though their turn to be ground up had not yet come.

The gabled porch, with woodbine green, The broken millstone at the sill, Though many a rood might stretch between, The truant child could see them still.

Compare Soon as the blessed flame had taken up The final word to give it utterance Began the holy millstone to revolve,

Why didn't I hold up to him those awful examples I could have cited, where poor young fellows that could just keep themselves afloat have hung a matrimonial millstone round their necks, taking it for a life-preserver?

"Now the Holy Mother presarve your eyesight, Tim Coolin," answers St. Piran, pulling it in, "if ye can't tell a plain millstone at foive paces!

encumbrance, incumbrance^; clog, skid, shoe, spoke; drag, drag chain, drag weight; stay, stop; preventive, prophylactic; load, burden, fardel^, onus, millstone round one's neck, impedimenta; dead weight; lumber, pack; nightmare, Ephialtes^, incubus, old man of the sea; remora. difficulty &c 704; insuperable &c 471; obstacle; estoppel

6 adjectives to describe  millstone