premeditation vs forethought

premeditation and forethought both are nouns.

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

As nouns, premeditation and forethought are synonyms defined as:

premeditation and forethought: planning or plotting in advance of acting

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