un·sound /ˌʌnˈsaʊnd◂/ adjectiveadj 1 TRUEnot based on facts or good reasons 无根据的;谬误的ideologically/scientifically/ecologically etc unsound a test that’s scientifically unsound 没有科学依据的试验
2 CONDITION/STATE OF somethingan unsound building or structure is in bad condition 〔建筑物或结构〕不安全的,不稳固的 The houses are structurally unsound. 这些房子结构不稳固。
3 CRAZY formal physically or mentally ill 身体不健康的;有精神病的 people of unsound mind (=people who are mentally ill) 精神失常的人
ideologically/scientifically/ecologically etc unsound• I would go further and suggest that it is also ideologically unsound.• Also, many names are painted on the bottom of the routes - ecologically unsound, but convenient!• It was expensive, high tech, brutal and, I don't doubt, ecologically unsound but I loved it all.• Cassie entertained more than a suspicion that John would definitely prove to be very ideologically unsound indeed! of unsound mind• If, then, the Member is still of unsound mind, his seat is automatically vacated.