about-face, amorality, apostasy, atheism, backing, backset, backslide, backsliding, backward motion, backward step, betrayal, bolt, breakaway, carnality, criminality, defection, delinquency, desertion, disenchantment, disloyalty, evil, evil nature, faithlessness, fall, fall from grace, flip-flop, going over, immorality, impiety, impiousness, impurity, irreligion, irreverence, lapse, lapse from grace, moral delinquency, peccability, prodigality, ratting, reaction, recession, recidivation, reclamation, reconversion, recreancy, reentry, refluence, reflux, regress, regression, rehabilitation, reinstatement, relapse, restitution, restoration, retroaction, retrocession, retroflexion, retrogradation, retrogression, retroversion, retrusion, return, returning, reversal, reverse, reversion, reverting, revulsion, rollback, secession, setback, slipping back, sternway, throwback, treason, turn, turnabout, turning traitor, unangelicalness, unchastity, uncleanness, undutifulness, ungodliness, ungoodness, unmorality, unrighteousness, unsaintliness, unvirtuousness, vice, viciousness, wantonness, waywardness, wrongdoing
relapse, lapse, falling back, retrogradation, deterioration, backsliding, recidivation, recidivism
, recidivity, recrudescence.
reversion, return, revulsion, turning point, turn of the tide, status quo ante bellum, calm before a storm, alternation, inversion, recoil, retreat, regression, retrogression, restoration, relapse, recidivism
, atavism, vicinism, reverting, regressive, revulsive, reactionary, retrorse, a rebours.
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.