imbalance; disequilibrium
Used in technical, economic, or formal contexts to describe a lack of balance or stability. Less common in everyday conversation than 不均衡.
経済の不平衡が拡大している。
The economic imbalance is widening.
貿易の不平衡を是正する必要がある。
It is necessary to correct the trade disequilibrium.
linkage disequilibrium
Compound of 不 (negative prefix) + 平衡 (balance, equilibrium). The reading ふへいこう follows standard on'yomi readings of the kanji.