無用

N1 素っ気無い sokkenai cold, short, curt, blunt N1 台無し dainashi mess, spoiled, (come to) nothing N1 代用 daiyou substitution N1 無難 bunan safety, security N1 無礼 burei impolite, rude N1 無意味 muimi nonsense, no meaning N1 無口 mukuchi reticence N1 無効 mukou invalid, no effect, unavailable N1 無言 mugon silence

N3 無 mu, bu / na.i nothingness, none, ain't N4 用 you / mochi.iru utilize, business, service