Antonyms of verb underspend

2 senses of underspend

Sense 1
underspend -- (spend less than the whole of (a budget, for example))
       Antonym of overspend (Sense 1)
      => overspend -- (spend more than available of (a budget))

Sense 2
underspend -- (spend at less than the normal rate)
       Antonym of overspend (Sense 2)
      => overspend -- (spend at a high rate)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb underspend

2 senses of underspend

Sense 1
underspend -- (spend less than the whole of (a budget, for example))
       => spend -- (spend completely; "I spend my pocket money in two days")

Sense 2
underspend -- (spend at less than the normal rate)
       => spend, expend, drop -- (pay out; "spend money")