1. State of having the interior filled with matter
   "The solidity of the ancient stone walls impressed the archaeologists"
    
2. The consistency of a solid
   "The solidity of the ice made it safe to skate on";
   - solidness
    
3. The quality of being solid and reliable financially, factually or morally
   "the solidity of the evidence worked in his favour";
   - solidness

Derived forms: solidities

See also: hollow, solid

Type of: body, consistence, consistency, dependability, dependableness, fullness, fulness, reliability, reliableness, substance

Antonym: hollowness, porosity

Encyclopedia: Solidity