Abstract noun referring to the quality or state of being contradictory or inconsistent. Often used in logical, philosophical, or critical contexts.
There is a contradiction in his argument.
It is easy to point out the inconsistency of this theory.
consistency (of an axiomatic system)
Compound of 矛盾 (contradiction) and the suffix 性 (-ness, -ity), forming an abstract noun meaning 'contradictoriness' or 'inconsistency'.