ameliorate
/əˈmiːli.əɹeɪt/
/əˈmiːli.əɹeɪt/
/əˈmiːli.əɹeɪt/
verb
-
To make better, or improve, something perceived to be in a negative condition.
"They offered some compromises in an effort to ameliorate the situation."
-
To become better; improve.
Antonyms:
deteriorate, worsen