lumpily,adv.|ˈlʌmpɪlɪ| [f. lumpy + -ly2.] In a lumpy fashion; in lumps. 1878Abney Photogr. (1881) 55 Note if the collodion flows freely, viscously, or lumpily.1900Blackw. Mag. Apr. 516/1 A white beard with amber streaks hung lumpily down to his waist.