What is the meaning of boldness?

noun

• The trait of being willing to undertake things that involve risk or danger.
  • usage: "the proposal required great boldness"; "the plan required great hardiness of heart"
  • synonyms: daring, hardiness, hardihood
• Impudent aggressiveness.
  • usage: "I couldn't believe her boldness"; "he had the effrontery to question my honesty"
  • synonyms: nerve, brass, face, cheek
• The quality of standing out strongly and distinctly.
  • synonyms: strikingness