1. thankless - Adjective
2. thankless - Adjective Satellite
Not acknowledging favors; not expressing thankfulness; unthankful; ungrateful.
Not obtaining or deserving thanks; unacceptable; as, a thankless task.
Source: Webster's dictionaryHow sharper than a serpent's tooth it is to have a thankless child! William Shakespeare
I have no ambition to govern men; it is a painful and thankless office. Thomas Jefferson
The confession of our failings is a thankless office. It savours less of sincerity or modesty than of ostentation. It seems as if we thought our weaknesses as good as other people's virtues. William Hazlitt
Were we to undertake an exhaustive self-scrutiny, disgust would paralyze us, we would be doomed to a thankless existence. Emil Cioran
Never try to convey your idea to the audience - it is a thankless and senseless task. Show them life, and they'll find within themselves the means to assess and appreciate it. Andrei Tarkovsky
A thankless man never does a thankful deed. Danish Proverb