mitigative vs mitigatory

mitigative and mitigatory both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mitigative	No	Yes	No	No
mitigatory	No	Yes	No	No

As adjectives, mitigative and mitigatory are synonyms defined as:

mitigative and mitigatory: moderating pain or sorrow by making it easier to bear

Other synonyms of mitigative include alleviative, alleviatory, lenitive, palliative.

mitigative (adjective)	mitigatory (adjective)
moderating pain or sorrow by making it easier to bear	moderating pain or sorrow by making it easier to bear