'Ungrateful' in the Bible

But Hezekiah was ungrateful; he had a proud attitude, provoking God to be angry at him, as well as Judah and Jerusalem.

If you pamper a servant from his childhood, later on he'll become ungrateful.

But love your enemies, do what is good, and lend, expecting nothing in return. Then your reward will be great, and you will be sons of the Most High. For He is gracious to the ungrateful and evil.

For people will be lovers of self, lovers of money, boastful, proud, blasphemers, disobedient to parents, ungrateful, unholy,