逆ぎゃく進しん税ぜいぎゃくしんぜいMeanings1nounregressive taxA tax system where the effective tax rate decreases as the taxable amount increases, often contrasted with 累進税 (progressive tax).See also: 累進税消しょう費ひ税ぜいは逆ぎゃく進しん税ぜいの性せい質しつを持