N-UNCOUNT
(行為的)反復無常,易變
If you refer to someone's inconsistency, you are criticizing them for not behaving in the same way every time a similar situation occurs.
例句
His worst fault was his inconsistency...
他最大的缺點就是反復無常。
The report accuses the judicial system of inconsistency and partiality.
報告指責司法系統執法前后不一且有失公正。