Meaning of solidness

(noun) the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape

the consistency of a solid

the quality of being substantial or having substance

the quality of being solid and reliable financially or factually or morally; "the solidity of the evidence worked in his favor"; "the solidness of her faith gave her enduring hope"