thanklessness

Becoming a vampire was his motivation for putting up with Nandor's thanklessness for all these years, and without getting paid for that trouble.

That’s hardly his fault, given the general thanklessness of trying to put a personal stamp on an industrial product as mechanized and fan service-driven as an Indiana Jones sequel.

Those who directly experienced his thanklessness were saddened but stoic.

I had never been struck at so keenly, for my thanklessness to Joe, as through the brazen impostor Pumblechook.

Harris’ no-win situation evinces the thanklessness of the vice presidency.