soundness
nounUK /ˈsaʊndnəs/
US /ˈsaʊndnəs/
Soundness means being strong, healthy, and in good shape.
The doctor checked the soundness of the old bridge before anyone crossed it.
OTHER MEANINGS
2. The quality of being based on good sense or truth.
Everyone trusted the soundness of her advice.
3. The state of being in good condition and not broken.
Engineers tested the soundness of the building after the earthquake.
4. In logic, the quality of an argument that is both valid and has true premises.
The teacher praised the soundness of his reasoning.