D defs.my
Entry 4 senses Webster, 1913

Careless

/kĕr'-ləs/ · Care·less · IPA /kɛɹ.ləs/
01 a. Free from care or anxiety. hence, cheerful; light-hearted.
  1. 1.
    Free from care or anxiety. hence, cheerful; light-hearted.
    “Sleep she as sound as careless infancy.” Shak.
  2. 2.
    Having no care; not taking ordinary or proper care; negligent; unconcerned; heedless; inattentive; unmindful; regardless.
    “My brother was too careless of his charge.” Shak.
    “He grew careless of himself.” Steele.
  3. 3.
    Without thought or purpose; without due care; without attention to rule or system; unstudied; inconsiderate; spontaneous; rash; as, a careless throw; a careless expression.
    “He framed the careless rhyme.” — Beattie.
  4. 4.
    Not receiving care; uncared for.[R.]
    “Their many wounds and careless harms.” Spenser.