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unsound
01
необоснованный
not sound financially
02
необоснованный
not in good condition; damaged or decayed
03
необоснованный
suffering from severe mental illness
04
необоснованный
containing or based on a fallacy
05
необоснованный
physically unsound or diseased
06
необоснованный
of e.g. advice
Пример
Venturing into that abandoned, structurally unsound building shows that he must have a death wish.
The old bridge was structurally unsound and needed to come down before it posed a risk to motorists.