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.