Oblivious

Part of speech: adjective (a.)

1. Promoting oblivion; causing forgetfulness. "The oblivious pool." Milton. She lay in deep, oblivious slumber. Longfellow.

2. Evincing oblivion; forgetful. Through are both weak in body and oblivious. Latimer. -- Obliv"i*ous*ly, adv. -- Ob*liv"i*ous*ness, n. Foxe.