
1) Density 2) Hardness 3) Impermeability 4) Impermeableness 5) Solidity
Found on
https://www.crosswordclues.com/clue/solidness

1) Solid 2) State 3) State of matter
Found on
https://www.crosswordclues.com/clue/solidness

• (n.) State or quality of being solid; firmness; compactness; solidity, as of material bodies. • (n.) Soundness; strength; truth; validity, as of arguments, reasons, principles, and the like.
Found on
http://thinkexist.com/dictionary/meaning/solidness/
Sol'id·ness noun 1. State or quality of being solid; firmness; compactness; solidity, as of material bodies.
2. Soundness; strength; truth; validity, as of arguments, reasons, principles, and the like.
Found on
http://www.encyclo.co.uk/webster/S/141
No exact match found.