phase down

to grow less in scope or intensity especially gradually <tourism along the coast phases down after Labor Day> Synonyms abate, decline, de-escalate, die (away or down or out), diminish, drain (away), drop (off), dwindle, ease, ebb, fall, fall away, lessen, let up, lower, moderate, pall, decrease, ratchet (down) also rachet (down), recede, relent, remit, shrink, subside, taper, taper off, waneRelated Words compress, condense, constrict, contract; evaporate, fade (away), fritter (away), give out, melt (away), peter (out), tail (off), vanish; slacken, slow (down); alleviate, relax; flag, sink, weaken; cave (in), collapse, deflateNear Antonyms appear, emerge, show up; blow up, distend, elongate, lengthenAntonyms accumulate, balloon, build, burgeon (also bourgeon), enlarge, escalate, expand, grow, increase, intensify, mount, mushroom, pick up, rise, snowball, soar, swell, wax