deteriation

Noun

deterioration (countable and uncountable, plural deteriorations)

1. The process of making or growing worse, or the state of having grown worse.
   • From 1945 onwards, deterioration in the condition of the brickwork in the arch soffits was kept under close observation, and in 1951 it was decided that strengthening must be undertaken.1954 January, “Strengthening of Coquet Viaduct”, in Railway Magazine, page 18

   Synonyms:

   aggravation, retrogression, worsening, corruption, debasement, degeneration, degradation, devolution, embasement, exacerbation

   Antonyms:

   amelioration