The Collaborative International Dictionary
Preconceiving
Preconceive \Pre`con*ceive"\, v. t. [imp. & p. p. Preconceived; p. pr. & vb. n. Preconceiving.] To conceive, or form an opinion of, beforehand; to form a previous notion or idea of.
In a dead plain the way seemeth the longer, because the
eye hath preconceived it shorter than the truth.
--Bacon.
Wiktionary
preconceiving
vb. (present participle of preconceive English)