notionist

notionist

(ˈnəʊʃənɪst)
n
a person whose opinions are merely notions, not based in fact
References in periodicals archive ?
He says he would "rather heare a mighty Angell (in man) swearing a full-mouthed Oath; and see the spirit of Nehemiah (in any form of man, or woman) running upon an unclean Jew (a pretended Saint) and tearing the hair of his head like a mad man, cursing, and making others fall a swearing, than hear a zealous Presbyterian, Independent, or spirituall Notionist, pray, preach, or exercise" (8).
Bunyan, for instance, defined a notionist as one who knows the scripture but only "in the notion, and hast not the power of the same in |his~ heart," having a head "full of the knowledge of the Scriptures," but a heart "empty of sanctifying grace.