无偿

無償
wúcháng
free; no charge; at no cost

CEDICT

Entry Composition

1 无 wú
  1. not to have
  2. no
  3. none
  4. not
  5. to lack
  6. un-
  7. -less
2 偿 cháng
  1. to repay
  2. to compensate for
  3. to recompense
  4. to fulfill (hopes etc)