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.

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

We recognize the governor must, at times at least, grow weary from the apparent thanklessness of his endless burden.