retrogression
noun
[ ˌrɛtrə(ʊ)ˈɡrɛʃ(ə)n ]
• the process of returning to an earlier state, typically a worse one.
• "a retrogression to 19th-century attitudes"
• another term for retrogradation.
Origin:
mid 17th century: from retro- ‘backwards’, on the pattern of progression .
