mitigative vs palliative

mitigative is not a noun while palliative is a noun.

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

As adjectives, mitigative and palliative are synonyms defined as:

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

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

mitigative (noun)	palliative (noun)
	remedy that alleviates pain without curing

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