devolve

to become worse or of less value the once-lovely neighborhood has devolved into a squalid slum Synonyms atrophy, crumble, decay, decline, degenerate, descend, deteriorate, ebb, regress, retrograde, rot, sink, worsenRelated Words abate, de-escalate, diminish, downsize, dwindle, recede, wane; break down, corrupt, decompose, degrade, dilapidate, disintegrate, molder, putrefy; sour, spoil; lessen, lower, reduce; debilitate, undermine; droop, fail, fall, flag, lag, languish, run down, sag, slip, waste (away), weaken, wiltNear Antonyms better, upgrade; enhance, enrich, fortify, heighten, intensify, strengthen; advance, develop, march, proceed, progressAntonyms ameliorate, improve, meliorate