intrusive
Cross references: 1. impertinent in.tru.sive \in-'tru:-siv, -ziv\ aj 1a: characterized by intrusion 1b: intruding where one is not welcome or invited 2a: projecting inward of a rock 2b1: having been forced while in a plastic state into cavities or between layers 2b2: PLUTONIC of a sound or letter 3: having nothing that corresponds to it in orthography or etymon {~ t/ in /'mints/ for mince} {~ d in thunder} - in.tru.sive.ly av