underpaidun‧der‧paid /ˌʌndəˈpeɪd◂ $ -ər-/ adjective Word Family: noun: pay, payment, repayment, payer, payee; verb: pay, repay, underpay ≠ overpay; adjective: paid ≠ unpaid, underpaid ≠ overpaid, payableearning less money than you deserve for your work: Teachers are overworked and underpaid.