THESAURUS
Refluent
antiphonal, ascending, axial, back, back-flowing, backward, descending, down-trending, downward, drifting, flowing, fluent, flying, going, gyrational, gyratory, mounting, passing, plunging, progressive, reacting, reactionary, reactive, reflex, reflexive, reflowing, regressive, respondent, responding, responsive, retroactionary, retroactive, retrogressive, revulsive, rising, rotary, rotational, rotatory, running, rushing, sideward, sinking, soaring, streaming, up-trending, upward
ROGET THESAURUS
Refluent
Recoil
N
recoil, reaction, retroaction, revulsion, bounce, rebound, ricochet, repercussion, recalcitration, kick, contrecoup, springing back, elasticity, reflection, reflexion, reflex, reflux, reverberation, rebuff, repulse, return, ducks and drakes, boomerang, spring, reactionist, elastic collision, coefficient of restitution, recoiling, refluent, repercussive, recalcitrant, reactionary, retroactive, on the rebound, on the recoil, for every action there is a reaction, equal in force and opposite in direction.
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.