Regressive

[rɪ'gresɪv] or [rɪ'ɡrɛsɪv]

(adj.) opposing progress; returning to a former less advanced state .

(adj.) (of taxes) adjusted so that the rate decreases as the amount of income increases .

Editor: Vanessa--From WordNet

(a.) Passing back; returning.

(a.) Characterized by retrogression; retrogressive.

Checker: Tom