prepossession vs preconception

prepossession and preconception both are nouns.

Word	Noun	Adjective	Verb	Adverb
prepossession	Yes	No	No	No
preconception	Yes	No	No	No

As nouns, prepossession and preconception are synonyms defined as:

prepossession and preconception: an opinion formed beforehand without adequate evidence

Other synonyms of prepossession include parti pris, preconceived idea, preconceived notion, preconceived opinion.

prepossession (noun)	preconception (noun)
an opinion formed beforehand without adequate evidence	an opinion formed beforehand without adequate evidence
the condition of being prepossessed	a partiality that prevents objective consideration of an issue or situation