malediction vs imprecation

malediction and imprecation both are nouns.

Word	Noun	Adjective	Verb	Adverb
malediction	Yes	No	No	No
imprecation	Yes	No	No	No

As nouns, malediction and imprecation are synonyms defined as:

malediction and imprecation: the act of calling down a curse that invokes evil (and usually serves as an insult)

malediction (noun)	imprecation (noun)
the act of calling down a curse that invokes evil (and usually serves as an insult)	the act of calling down a curse that invokes evil (and usually serves as an insult)
	a slanderous accusation