not feeling or showing gratitude; "ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child!"- Shakespeare
not feeling or showing gratitude; "ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child!"- Shakespeare disagreeable; "I will not perform the ungrateful task of comparing cases of failure"- Abraham Lincoln
disagreeable; "I will not perform the ungrateful task of comparing cases of failure"- Abraham Lincoln
Not grateful; not thankful for favors; making no returns, or making ill return for kindness, attention, etc
Unpleasing; unacceptable; disagreeable; as, harsh sounds are ungrateful to the ear
disapproval If you describe someone as ungrateful, you are criticizing them for not showing thanks or for being unkind to someone who has helped them or done them a favour. I thought it was rather ungrateful You ungrateful brat. grateful. not expressing thanks for something that someone has given to you or done for you