在他去世后，她变得有些精神失常。

After his death, she became slightly ___unbalanced.

许多无家可归者精神失衡，有些人还对化学物质上瘾。

Many homeless people are mentally ___unbalanced, some are addicted to chemical substances.

长期的隔离使他感到严重的精神失衡。

The prolonged isolation left him feeling profoundly ___unbalanced.