mitigative
mi·ti·ga·tive
adjective
1.
moderating pain or sorrow by making it easier to bear
Origin
From mitigate + -ive.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.