N-UNCOUNT
(行为的)反复无常,易变
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...
他最大的缺点就是反复无常。
The report accuses the judicial system of inconsistency and partiality.
报告指责司法系统执法前后不一且有失公正。