sourceless,a.|ˈsɔəslɪs| [f. source n.] Having no source. 1848Bailey Festus (ed. 3) 109 The sourceless circular river of Thy love.1908Punch 25 Sept. 436/1 The unnoticed, sourceless wound.1981Washington Post 8 July c1 Talent—this sourceless asset that one cannot command to be born.