underspend

/ˌʌndəˈspend/ verb [I or T] (underspent) FINANCE, ECONOMICS

Definition

› to spend less than you are able to or than was planned: Departments that are underspending are being allowed to carry unused parts of their budgets forward.underspend on sth If we continue to underspend on the network, problems will build up. Big oil firms are underspending their exploration budgets. → Compare overspend verb

(Definition of underspend verb from the Cambridge Business English Dictionary © Cambridge University Press)