Definition of unrewardable in US English:

unrewardable

adjective

  • Not rewardable; not worthy of reward or recompense.

Origin

Late 15th century; earliest use found in Reginald Pecock (c1392–?1459), bishop of Chichester and religious author. From un- + rewardable.

Pronunciation

unrewardable

/(ˌ)ʌnrɪˈwɔːdəbl/