propitiatory vs expiative

propitiatory and expiative both are adjectives.

Word	Noun	Adjective	Verb	Adverb
propitiatory	No	Yes	No	No
expiative	No	Yes	No	No

As adjectives, propitiatory and expiative are synonyms defined as:

propitiatory and expiative: having power to atone for or offered by way of expiation or propitiation

Other synonyms of propitiatory include expiatory.

propitiatory (adjective)	expiative (adjective)
having power to atone for or offered by way of expiation or propitiation	having power to atone for or offered by way of expiation or propitiation
intended to reconcile or appease