making worse

• deterioratingBecoming progressively worse
• worseningBecoming more severe
• aggravatingCausing irritation or worsening
• exacerbatingMaking something worse
• compoundingElements merging progressively

escalating · intensifying · damaging · ruining · spoiling · poisoning · festering · rotting · corroding · eroding · declining · spiraling · sinking · unraveling · sabotaging · undermining · inflaming · salt