decadent (n.)
decadent (adj.)
- abandoned
 - contaminated
 - corrupt
 - corrupted
 - cracking
 - debased
 - debauched
 - degenerate
 - degenerative
 - degraded
 - depraved
 - dissipated
 - dissolute
 - draining
 - drooping
 - dwindling
 - effete
 - fading
 - failing
 - falling
 - flagging
 - immoral
 - perverted
 - polluted
 - profligate
 - regressive
 - reprobate
 - retrograde
 - retrogressive
 - rotten
 - self-indulgent
 - sliding
 - slipping
 - tainted
 - vitiated
 - waning
 - warped
 - withering
 - worsening