Synonyms and related words :
ascending, axial, back, back-flowing, backward, collapsing, deciduous, declined, declining, declivate, declivitous, declivous, decurrent, descendant, dipping, down, down-reaching, down-trending, downcoming, downfalling, downgoing, downgrade, downhill, downsinking, downward, drifting, drooping, dropping, falling, flowing, fluent, flying, going, gyrational, gyratory, mounting, on the descendant, on the downgrade, passing, plummeting, plunging, progressive, reflowing, refluent, regressive, retrogressive, rising, rotary, rotational, rotatory, running, rushing, sagging, setting, sideward, sinking, soaring, streaming, submerging, subsiding, tottering, tumbledown, up-trending, upward