noun
high unemployment rate
A straightforward compound noun used in economic and news contexts.
高失業率が続いている。
The high unemployment rate continues.
高失業率は経済の大きな問題だ。
A high unemployment rate is a major economic problem.
失業率 means 'unemployment rate' in general, while 高失業率 specifically refers to a high unemployment rate.
Compound of 高 (high) + 失業率 (unemployment rate).