concerned in some affair, especially in a way likely to cause danger or unpleasantness: I didn't call the police because I didn't want to get involved.
4.
committed or engaged, as in a political cause or artistic movement: The civil rights demonstration attracted the involved young people of the area.
1382, from L. involvere "entangle, envelop," lit. "roll into," from in- "in" + volvere "to roll" (see vulva). Originally "envelop, surround," sense of "take in, include" first recorded 1605. Involved "complicated" is from 1643.