Regardless

Re*gard"less, a. 1. Having no regard; heedless; careless; as, regardless of life, consequences, dignity.

Regardless of the bliss wherein he sat.
Milton.

2. Not regarded; slighted. [R.] Spectator.

Syn. -- Heedless; negligent; careless; indifferent; unconcerned; inattentive; unobservant; neglectful.

-- Re*gard"less*ly, adv. -- Re*gard"less*ness, n.