decadency (noun)

1. During the decline of the Roman Empire, decadency plagued the ruling class and contributed to its downfall.

2. In the novel, the protagonist's decadency is a central theme, as his immoral choices lead to his ultimate downfall.

3. The religious leader preached against decadency, urging his followers to lead a virtuous life.

4. Why did the cookie go to therapy? Because it had a decadency complex!