worsening
wor-sen-ing
noun
The process of something becoming more severe, serious, or less favourable.
"There was a worsening of the economic outlook."
verb
Becoming more severe, serious, or unpleasant; making something worse.
"The patient's condition is worsening daily."
Thesaurus
Synonyms: declension, decline in quality, deterioration
Antonyms: bettering