1. ungrateful - Noun
2. ungrateful - Adjective
3. ungrateful - Adjective Satellite
Not grateful; not thankful for favors; making no returns, or making ill return for kindness, attention, etc.; ingrateful.
Unpleasing; unacceptable; disagreeable; as, harsh sounds are ungrateful to the ear.
Source: Webster's dictionaryDoes not the gratitude of the dog put to shame any man who is ungrateful to his benefactors? Basil of Caesarea
I have learned silence from the talkative, toleration from the intolerant, and kindness from the unkind; yet, strange, I am ungrateful to those teachers. Kahlil Gibran
The belly is an ungrateful wretch, it never remembers past favors, it always wants more tomorrow. Aleksandr Solzhenitsyn
An ungrateful son is a wart on his father's nose. If he leaves it, it's ugly. If he removes it, it hurts. Persian Proverb
Ingratitude is a kind of weakness; the clever are never ungrateful. French Proverb
Hell is crowded with ungrateful wretches. Italian Proverb