这位画家去世前一直默默无闻，他的作品直到近年才被重新发现。

The painter lived in ___obscurity before his death, and his works were only rediscovered in recent years.

这首诗的晦涩难懂让很多读者感到困惑。

The ___obscurity of this poem confused many readers.

他演讲中的某些观点因表达不清而难以理解。

Some points in his speech were lost in the ___obscurity of his unclear expression.