amelioratory
/ˌæmɪliˈɒrətri/Definitions
1. adjective
Tending or intended to improve a situation or make it better.
“The new policy was seen as amelioratory, as it addressed some of the long-standing complaints.”
2. noun
A person or thing that improves a situation or makes it better.
“The company’s CEO was hailed as an amelioratory force for the community, thanks to his charitable efforts.”