regressive

adjectives

(of taxes) adjusted so that the rate decreases as the amount of income increases
antonym
domain category
charge against a citizen's person or property or activity for the support of government
opposing progress; returning to a former less advanced state
is derived from
antonym
is similar to
characteristic of an atavist
is similar to
going from better to worse
is similar to
tending to return to an earlier state
is similar to
not brought up to date
see also
directed or facing toward the back or rear
"a backward view"