clanless,a.rare.|ˈklænlɪs| [f. clan n. + -less.] Without a clan, belonging to no clan. a1849J. C. Mangan Poems 402 The O'Brien is clanless and banned.1886H. M. Posnett Compar.Lit. 193 The deadly enmity between these full citizens and the clanless proletariate.