1. moral or cultural decline as characterized by excessive indulgence in pleasure or luxury
2. the process of falling into an inferior condition or state

Examples

• The historian argued that excessive wealth led to the decadence of the Roman Empire.
• Critics saw the lavish parties as a sign of moral decadence among the elite.
• The novel explores themes of decadence in high society during the 1920s.
• Many believed the decadence of the aristocracy contributed to the revolution.
• The city’s decadence was evident in its crumbling infrastructure and corrupt officials.
• She wrote about the decadence of modern consumer culture.
• The museum exhibit showcased art from an era of supposed cultural decadence.