後退的,逆行的,退化的,回歸的
Regressive \Re*gress"ive\ (r?*gr?s"?v), a. [Cf. F. r['e]gressif.] 1. Passing back; returning. 2. Characterized by retrogression; retrogressive. {Regressive metamorphism}. (a) (Biol.) See {Retrogression}. (b) (Physiol.) See {Katabolism}.
regressive adj 1: (of taxes) adjusted so that the rate decreases as the amount increases [ant: {progressive}] 2: opposing progress [ant: {progressive}]