Not repaid or rewarded; unrequited.

Unrequited.

Unrewarded.

Unrequited; not repaid. Now rare (chiefly archaic).

Without guerdon; not receiving, occasionally not bestowing, a guerdon.

Not rewarded or recompensed; unrequited.

(un-, prefix1 affix 2.)

Not rewarded or compensated; not made amends for.

That is without reward; unrewarded. Cf. thankless, adj.

Of a gift, service, etc.: not repaid or rewarded. Of an injury, wrong, etc.: not avenged or retaliated for.

Not paid back, not returned or responded to. Also: (of a person) not given (back) what is due, unrecompensed.

unrequited.

Involving no recompense or reward; thankless.

Unrecompensed.