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unsound

1 ENTRIES FOUND:
unsound /ˌʌnˈsaʊnd/ adjective
unsound
/ˌʌnˈsaʊnd/
adjective
Britannica Dictionary definition of UNSOUND
[more unsound; most unsound]
: not based on truth or logic : not showing good judgment
: poorly built or in bad condition

of unsound mind

law
: mentally ill : not sane