unrewardableadj.

c1475 (c1445) R. Pecock Donet (1921) 94 Not wiþstonding synne is..vncleene, vnrewardable, punyschable.

1694 J. Lowde Disc. conc. Nature of Man ii. 32 That Vertue, according to his principles, must be founded on very weak and uncertain grounds and reasons, especially as to the more difficult duties of an holy Life; they being at present both unpleasant and afterwards unrewardable.

1730 T. Troughear Best Way Making Charity Truly Beneficial to Poor 15 Whilst the honest Tradesman, or the industrious Farmer, gave as forced by Law, the Christian had no Part in it, and the dead [sic] was unrewardable.

1826 Boston Monthly Mag. June 78 I..considered this fascinating writer as having done an unrewardable service to his age, by the death blow he has given to that host of female scribblers.

1872 Leicester Chron. & Leics. Mercury 25 May 2/1 What with indifference, humbleness, dislike of crowds, and dislike of unrewardable trouble, we fully expect to see in the first ordinary election an unexpected and most disastrous reduction in the constituencies.

1940 New Eng. Q. 13 395 Any reward he got could not represent a thousandth part of his merits which were unseen and unrewardable.

2007 J. Bradfield Introd. to Econ. of Financial Markets ii. vi. 115 Economists describe systematic risk as rewardable risk because an investor cannot eliminate that risk through diversification. Similarly, firm-specific risk is unrewardable risk.