noun
discordance; discrepancy; mismatch
Refers to a state where things do not match or are inconsistent, often used in technical or statistical contexts. Can also describe general conflict or incongruity.
統計データに不突合が見つかった。
A discrepancy was found in the statistical data.
両者の主張には不突合がある。
There is a conflict between the two claims.
矛盾 implies a logical contradiction, whereas 不突合 is a broader mismatch or discrepancy.
Compound of 不 (fu, 'not') and 突合 (tsugō, 'matching' or 'agreement'). The exact historical derivation is uncertain, but the term is used in modern technical and formal Japanese.