Related formsthank·less·ly, adverbthank·less·ness, noun
Examples from the Web for thankless
Law-enforcement agencies at all levels of government provide a valuable and often thankless public service in their communities.
But it serves no one to perpetuate the idea that parenting is supposed to be an agonizing and thankless slog.Ad's Message to Moms: If You Don’t Think Parenting Sucks, You’re Doing it Wrong|Andy Hinds|April 18, 2014|DAILY BEAST
Hosting the show really is the most thankless—and one of the most trying—jobs in showbiz, but DeGeneres did a helluva job.Surprise! Ellen DeGeneres is the Best Oscars Host in a Decade|Marlow Stern|March 3, 2014|DAILY BEAST
Ryan's job is thankless, although he is thanked a lot by others.
Murmelstein was stuck with a thankless and impossible job, caught between the hammer and the anvil, as he tells us.Confessions of a Death Camp Collaborator: Claude Lanzmann’s ‘The Last of the Unjust’|Jimmy So|February 7, 2014|DAILY BEAST
To seize and master and utilize these energies appeared a thankless job, albeit a necessary one.
A very hard-working Opera for the principals, and a thankless task.
Charlie Anderson, after squandering a fortune on a thankless wife, works for a labourer's hire.The Trail of '98|Robert W. Service
She remembered her weary labors and thankless efforts, and a voice replied, "But my yoke is sweet, and my burden light."
Yet that is exactly what should be expected of him—a Herculean task and a most thankless one.Literature for Children|Orton Lowe