Its hardness, solidity, and actuality could not be gainsaid.
Now, it is this sense of the solidity of things that can only be uttered by the metaphor of eating.
Also, it looked as solid as the earth, but was without any solidity at all.
He went over it carefully, to assure himself of its solidity.
He tapped the end of the boat with his foot to make sure of its solidity.