unthankfulness
Romans Chapter 1:21
Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
Colossians Chapter 3:17
And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him.
1 Thessalonians Chapter 5:18
In every thing give thanks: for this is the will of God in Christ Jesus concerning you.