shat·ter / ˈshatər/ • v. break or cause to break suddenly and violently into pieces: [intr.] bullets riddled the bar top, glasses shattered, bottles exploded | [tr.] the window was shattered by a stone. ∎ [tr.] damage or destroy (something abstract): the crisis will shatter their confidence. ∎ [tr.] upset (someone) greatly: everyone was shattered by the news | [as adj.] (shattering) he found it a shattering experience. DERIVATIVES: shat·ter·er n.shat·ter·ing·ly adv.shat·ter·proof / -ˌproōf/ adj.