alleviatory vs palliative

alleviatory is not a noun while palliative is a noun.

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

As adjectives, alleviatory and palliative are synonyms defined as:

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

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

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

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