Ingrate
(noun)
A person who is ungrateful or does not show appreciation for kindness or benefits received.
Origin:
Middle english (denoting a person who does not show gratitude), from old french ingrat, from latin ingratus, from in- "not" + gratus "pleasing".
Examples:
- She felt that her son was an ingrate who took all of her hard work for granted.
- The charity was disappointed by the ingrates who didn't even write a thank you note for the gifts they received.
- Despite all his good deeds, he was treated as an ingrate by the people he helped.
- He was an ingrate who never thanked his parents for all they had done for him.
- The ingrate didn't even offer to help his friend after he was bailed out of jail.