Bastioned

ppl. a. [f. prec. + -ED².] Furnished with or defended by a bastion or bastions.

1817.  Moore, Lalla R., Veiled Proph., III. If tower and battlement And bastion’d wall be not less hard to win.

1875.  Hist. Civ. War Amer., I. 457. Closed at the gorge by a bastioned curtain with a lunette.