Pronunciation: /ʌnˈsaʊnd/
adjective
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1not safe or robust; in poor condition: the tower is structurally unsound
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not healthy or well: Dorinda was mentally unsound
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2not based on sound or reliable evidence or reasoning: this line of argument is unsound
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not acceptable: activities deemed to be environmentally unsound
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(of a person) not holding acceptable views.
