unsound
adjective /ˌʌnˈsaʊnd/
/ˌʌnˈsaʊnd/
Idioms - (of a building, etc.) in poor condition; weak and likely to fall down
- The roof is structurally unsound.
- not acceptable; not based on reliable evidence
- ideologically unsound
- The use of disposable products is considered ecologically unsound.
- This line of argument is unsound.
- containing mistakes; that you cannot rely on synonym unreliable
- The methods used were unsound.
opposite sound
Idioms
of unsound mind
- (law) not responsible for your actions because of a mental illness