ˈsau̇nnə̇s also -ndnə̇s noun
( -es )
Etymology: Middle English, from sound (I) + -ness
: the quality or state of being sound: as
a. : healthiness of body or mind
the soundness of his constitution
b. : financial security : solvency
appraising the soundness of the enterprise
c. : resistance to damage or disintegration : firmness , solidity
assure … uniformity and structural soundness — Steel
d. : rightness of judgment or conception : levelheadedness
the soundness of his educational theories — H.E.Starr
e. : orthodoxy
convinced he had always doubted the soundness of my principles — Joseph Conrad