Meaning : 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.
Synonyms : solid, solid state
Meaning : The quality of being substantial or having substance.
Synonyms : substantiality, substantialness
Lacking substance or reality.
insubstantialityMeaning : The quality of being solid and reliable financially or factually or morally.
Example :
The solidity of the evidence worked in his favor.
The solidness of her faith gave her enduring hope.
Synonyms : solidity