THESAURUS
retrogressive
ascending, atavistic, axial, back, back-flowing, backward, coming apart, cracking, crumbling, decadent, declining, degenerate, descending, deteriorating, disintegrating, down-trending, downward, draining, drifting, drooping, dwindling, ebbing, effete, fading, failing, falling, flagging, flowing, fluent, flying, fragmenting, going, going to pieces, gyrational, gyratory, languishing, marcescent, mounting, passing, pining, plunging, progressive, reactionary, recessive, recidivist, recidivous, reflowing, refluent, regressive, retroactive, retrocessive, retrograde, retrorse, retroverse, returnable, reversible, reversional, reversionary, revertible, revulsionary, rising, rotary, rotational, rotatory, running, rushing, shriveling, sideward, sinking, sliding, slipping, slumping, soaring, streaming, subsiding, tabetic, up-trending, upward, waning, wasting, wilting, withering, worsening
ROGET THESAURUS
retrogressive
Regression
N
regress, regression, retrocession, retrogression, retrograduation, retroaction, reculade, retreat, withdrawal, retirement, remigration, recession, recess, crab-like motion, refluence, reflux, backwater, regurgitation, ebb, return, resilience reflection, reflexion (recoil), flip-flop, volte-face, counter motion, retrograde motion, backward movement, motion in reverse, counter movement, counter march, veering, tergiversation, recidivation, backsliding, fall, deterioration, recidivism, recidivity, reversal, relapse, turning point, receding, retrograde,
retrogressive, regressive, refluent, reflex, recidivous, resilient, crab-like, balky, reactionary, back, backwards, reflexively, to the right about, a reculons, a rebours, revenons a nos moutons, as you were.