underspend

under- +‎ spend

• Rhymes: -ɛnd

underspend (third-person singular simple present underspends, present participle underspending, simple past and past participle underspent)

1. To spend too little of the funds appropriated or allocated.

underspend (plural underspends)

1. An amount by which an allocated amount is not expended.

   Any underspends will revert to the general fund at the end of the year.