bettering
bet-ter-ing
noun
The process of making or becoming superior; an act of improvement.
"Her constant bettering of skills was evident."
verb
Making something or someone superior, more advantageous, or more desirable.
"He is bettering his chances for success."
Thesaurus
Synonyms: amelioratory, remedial, ameliorating, ameliorative, meliorative, amendatory, corrective
Antonyms: worsening