forethought vs premeditation

forethought and premeditation both are nouns.

Word	Noun	Adjective	Verb	Adverb
forethought	Yes	No	No	No
premeditation	Yes	No	No	No

As nouns, forethought and premeditation are synonyms defined as:

forethought and premeditation: planning or plotting in advance of acting

forethought (noun)	premeditation (noun)
judiciousness in avoiding harm or danger	planning or plotting in advance of acting
planning or plotting in advance of acting	(law) thought and intention to commit a crime well in advance of the crime; goes to show criminal intent