Definition of "regardless"

regardless

/ɹɪˈɡɑɹd.lɪs/

adverb
comparative more regardless, superlative most regardless
1. Without attention to warnings or indications of bad consequences.
adjective
comparative more regardless, superlative most regardless
1. Paying no attention to; ignoring.
  Quotations
  Hippolita, ſcarce more alive than her daughter, was regardleſs of every thing but her: but when the tender Iſabella’s care would have likewiſe removed her, while the ſurgeons examined Matilda’s wound, ſhe cried, remove me! never! never! I lived but in her and will expire with her.
  1764, “Onuphrio Muralto”, translated by William Marshal [pseudonym; Horace Walpole], The Castle of Otranto, […], Dublin: […] J. Hoey, […], published 1765, page 140
2. Taking insufficient regard of; heedless; careless.
  Quotations
  Always deceived in fact by his own wishes, and regardless of little besides his own convenience.
  1815 December (indicated as 1816), [Jane Austen], chapter XV, in Emma: […], volume III, London: […] [Charles Roworth and James Moyes] for John Murray, page 279
  I grew, day by day, more moody, more irritable, more regardless of the feelings of others.
  1843, Edgar Allan Poe, The Black Cat
preposition
1. (proscribed) Synonym of regardless of; paying no attention to.