boldness

(noun) the trait of being willing to undertake things that involve risk or danger. Synonyms: daring, hardiness, hardihood. Examples: "The proposal required great boldness." "The plan required great hardiness of heart."

(noun) impudent aggressiveness. Synonyms: nerve, brass, face, cheek. Examples: "I couldn't believe her boldness." "He had the effrontery to question my honesty."

(noun) the quality of standing out strongly and distinctly. Synonyms: strikingness.