Sophomorical, Sophomoric adj. Of or pertaining to a sophomore; resembling a sophomore; hence, pretentious; inflated in style or manner; as, sophomoric affectation. (U. S.)
... to call Mr. Tarkington's plots sophomoric than to call them adolescent. Indeed, the mark of the undergraduate almost covers them, especially of the undergraduate as he fondly imagines himself in his callow days and as he is foolishly instructed to regard himself by the more vinous and more hilarious of the old graduates ... — Contemporary American Novelists (1900-1920) • Carl Van Doren