non-regressive

adjective

1. regressing or tending to regress; retrogressive.
2. Biology. of, relating to, or effecting regression.
3. (of tax) decreasing proportionately with an increase in the tax base.
4. Logic. obtained from or characterized by backward reasoning.

adjective

1. regressing or tending to regress
2. (of a tax or tax system) levied or graduated so that the rate decreases as the amount taxed increasesSee progressive (def. 5)
3. of, relating to, or characteristic of regression

adj.1630s; see regress + -ive. In reference to taxation, it is attested from 1889. Related: Regressively. adj.

1. Having a tendency to return or to revert.
2. Characterized by regression.