solidness

The state or property of being solid: solidity.

Soundness; strength; truth; validity, as of arguments, reasons, principles, etc.

State or quality of being solid; firmness; compactness; solidity, as of material bodies.

Soundness; strength; truth; validity, as of arguments, reasons, principles, and the like.

The state or quality of being solid.

the quality of being substantial or having substance

the consistency of a solid

the quality of being solid and reliable financially or factually or morally

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