adv. (UN-1 11; cf. prec.)

1

1818.  Shelley, Rosal. & Helen, 668. Like a vile weed Which the sea casts unreturningly.

2

1845–6.  Trench, Huls. Lect., Ser. II. ii. 175. That sepulchre, to which it had seen its sons … unreturningly descend.

3