vapidly,adv.|ˈvæpɪdlɪ| [f. as prec. + -ly2.] In a vapid manner. 1847in Webster.1880‘Ouida’ Moths xx, She seemed to herself so useless, so stupidly, vapidly, frivolously useless.1888Times 24 Sept. 9/5 If they were become simply un⁓intelligible or vapidly dull, the wonder would be less.