PROFOUND

I. adjective see: pro- Date: 14th century 1. having intellectual depth and insight, difficult to fathom or understand, 2. extending far below the surface, coming from, reaching to, or situated at a depth ; deep-seated , 3. characterized by intensity of feeling or quality, all encompassing ; complete , ~ly adverb ~ness noun II. noun Date: 1621 something that is very deep