solidness

Plural: solidnesses

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 solidness of her faith gave her enduring hope"
• The state or quality of being solid.

Examples

• "When something melts it loses its solidness and becomes a liquid."

Synonyms

solid, solid state, solidity, substantiality, substantialness

Antonyms

insubstantiality, porosity