Open English Wordnet
Adjectives
(a)unsoundnot in good condition; damaged or decayed“an unsound foundation” (a)unsoundnot sound financially“unsound banking practices” (s)fallacious, unsoundcontaining or based on a fallacy“fallacious reasoning”,
“an unsound argument” (s)bad, unfit, unsoundphysically unsound or diseased“has a bad back”,
“a bad heart”,
“bad teeth”,
“an unsound limb”,
“unsound teeth”