词典释义：
释义
adj.
not safe or robust; in poor condition
不安全的；不健康的，情况不佳的
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the tower is structurally unsound .那座塔结构不良。
not based on sound evidence or reasoning and therefore unreliable or unacceptable
无根据的；不牢靠的；不可接受的
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activities deemed to be environmentally unsound .被认为是不利于环境的活动。
(of a person)not competent, reliable, or holding acceptable views
（人）不称职的；不可靠的；持错误观点的。
injured, ill, or diseased, especially (of a horse) lame
受伤的；生病的；（尤指马）瘸的。