BORDERLINE

I. adjective Date: 1907 1. being in an intermediate position or state ; not fully classifiable as one thing or its opposite , not quite up to, typical of, or as severe as what is usual, standard, or expected , characterized by psychological instability in several areas (as interpersonal relations, behavior, and identity) but only with brief or no psychotic episodes , situated at or near a border , ~ noun II. adverb Date: 1925 almost , nearly