deteriorate
1. [ verb ] become worse or disintegrate
Synonyms: degenerate
Examples:

"His mind deteriorated"

Related terms: decay wear go_to_pot deterioration
2. [ verb ] grow worse
Synonyms: degenerate devolve drop
Examples:

"Her condition deteriorated" "Conditions in the slums degenerated" "The discussion devolved into a shouting match"

Related terms: recuperate worsen tire age languish waste degeneracy deterioration
Similar spelling:   deterioration
  deteriorating