Learner's definition of INCONSISTENCY
the quality or fact of being inconsistent: such as
the quality or fact of not staying the same at different times
Police noticed inconsistency in his two statements.
Customers have been complaining about the inconsistency in the quality of service they have received.
The team's biggest problem has been inconsistency: it has played well at times, but at other times it has played very poorly.
the quality or fact of having parts that disagree with each other
a difference or disagreement between two statements which means that both cannot be true