Ungrateful - Definition

adj 1: not feeling or showing gratitude; "ungrateful heirs";
"How sharper than a serpent's tooth it is / To have a
thankless child!"- Shakespeare [syn: ungrateful,
thankless, unthankful] [ant: grateful, thankful]
2: disagreeable; "I will not perform the ungrateful task of
comparing cases of failure"- Abraham Lincoln