solidness in WordNet English dictionary

1. 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
   solid  solidness  solid state 
   
2. 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"
   solidity  solidness 
   
3. the consistency of a solid
   solidity  solidness 
   
4. the quality of being substantial or having substance
   substantiality  substantialness  solidness