nerv·y / ˈnərvē/ • adj. (nerv·i·er, nerv·i·est) 1. inf. bold or impudent: it was kind of nervy for Billy to be telling him how to play.2. chiefly Brit. easily agitated or alarmed; nervous: he was nervy and on edge. ∎ characterized or produced by apprehension or uncertainty: they made a nervy start.3. archaic or poetic/lit. sinewy or strong.DERIVATIVES: nerv·i·ly / ˈnərvəlē/ adv.nerv·i·ness n.