Regardless

Part of speech: adjective (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.

Synonyms: Heedless; negligent; careless; indifferent; unconcerned; inattentive; unobservant; neglectful. Re*gard"less*ly, adv. Re*gard"less*ness, n.