noun which may take the genitive case particle 'no', noun
over budget
Describes a situation where costs exceed the planned budget. Often used with になる or as a の-adjective.
このプロジェクトは予算オーバーになりそうだ。
This project is likely to go over budget.
予算オーバーの支出は承認されなかった。
The over-budget expenditure was not approved.