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preconception

[pree-kuhn-sep-shuhn] / ˌpri kənˈsɛp ʃən /
NOUN
idea formed before event occurs or facts are received
Synonyms
STRONGEST
assumption predisposition prejudice
STRONG
bias delusion illusion inclination notion prejudgment prepossession presumption presupposition
WEAK
preconceived idea
Antonyms
STRONG
certainty fact reality truth
WEAK
ignorance

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.