imprecation vs malediction

imprecation and malediction both are nouns.

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

As nouns, imprecation and malediction are synonyms defined as:

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

imprecation (noun)	malediction (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