underpayment
1. [ noun ] (business) a payment smaller than needed or expected
Related terms: payment
2. [ noun ] (business) the act of paying less than required
Related terms: payment underpay
Similar spelling:   underlayment
  underpants
  undergarment
  understatement
  underplay
  underpart
  underframe
  underspent
  undermentioned
  undercurrent
  undersurface
  underpass
  under_way
  understate
  underprice
  undercoat
  undercharge
  under_wraps
  underperform
  underneath
  underexpose