amelioration

4 antonyms for amelioration — opposites grouped by meaning.

Noun — The act of improving something.

Antonyms

disimprovement exacerbation retrogression deterioration

Came from Middle English amelioracioun, from Middle French amelioracion, and probably also partly from ameliorate with the suffix -ion.

deterioration retrogression disimprovement betterment melioration exacerbation