- 1not acceptable; not holding acceptable views ideologically unsound The use of disposable products is considered ecologically unsound.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2containing mistakes; that you cannot rely on synonym unreliable The methods used were unsound.
- 3(of a building, etc.) in poor condition; weak and likely to fall down The roof is structurally unsound. opposite sound Idioms
not responsible for your actions because of a mental illness
noun [uncountable]See unsound in the Oxford Advanced Learner's Dictionary
Check pronunciation: unsound