Wiktionary
unattributed
a. Lacking attribution; of unknown authorship
Usage examples of "unattributed".
Following a tender scene between Thomas and Giulielma in which he pleads with her to accompany him north, a fall from a horse leads somewhat inexplicably into a heated discussion of justice between Thomas, William and Mr Kane employing patches of Platonic dialogue lifted directly from Book I of the Republic, interspersed with unattributed views of Albert Camus on total justice and of Rousseau on absolute freedom, and Thomas departs.