regardless

Etymology

From regard + -less.

adv

1. Without attention to warnings or indications of bad consequences.
   Tatiana knew the meat had passed its expiry date, but she ate it regardless.

adj

1. Paying no attention to; ignoring.
2. Taking insufficient regard of; heedless; careless.
   I grew, day by day, more moody, more irritable, more regardless of the feelings of others. 1843, Edgar Allan Poe, The Black Cat

prep

1. (proscribed) Synonym of regardless of; paying no attention to.
   Tatiana ate the cauliflower regardless its colour.