regressive
adjective /rɪˈɡresɪv/
  /rɪˈɡresɪv/
- becoming or making something less advanced退化的;倒退的;退步的 - The policy has been condemned as a regressive step.这项政策被认为是一种倒退而受到谴责。 
 
- The policy has been condemned as a regressive step.
- (specialist) (of taxes税收 递减的(对富人的影响比对穷人的小) - A regressive tax structure is one in which the average tax rate falls as income level rises.累退税结构是一种平均税率随着收入水平的提高而下降的结构。 
 
- A regressive tax structure is one in which the average tax rate falls as income level rises.