累るい減げん税ぜいるいげんぜいMeanings1nounregressive taxationA tax system where the effective tax rate decreases as the taxable amount increases, placing a heavier relative burden on lower-income individuals.消しょう費ひ税ぜいは累るい減げん税ぜいの性せい質しつを持もつと批ひ判はんさ