deteriorate Synonyms

degenerate worsen drop weaken devolve diminish disintegrate go off slide fall wane rot impair spoil slip regress go downhill crumble decay decline degrade erode get worse go to rack and ruin sicken spiral downward spiral slump sink grow worse nerf hit the skids fall apart worsening go bad break down go to the dogs take a turn for the worse go down the toilet become worse wither go to pot undermine retrogress degrading degraded decrease decompose decaying decayed