from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Fearlessly, often recklessly daring; bold. See Synonyms at adventurous, brave.
  • adj. Unrestrained by convention or propriety; insolent.
  • adj. Spirited and original: an audacious interpretation of two Jacobean dramas.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Showing willingness to take bold risks; recklessly daring.
  • adj. Impudent.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Daring; spirited; adventurous.
  • adj. Contemning the restraints of law, religion, or decorum; bold in wickedness; presumptuous; impudent; insolent.
  • adj. Committed with, or proceedings from, daring effrontery or contempt of law, morality, or decorum.

from The Century Dictionary and Cyclopedia

  • Bold or daring; spirited; adventurous; intrepid.
  • Unrestrained by law, religion, or propriety; characterized by contempt or defiance of the principles of law or morality; presumptuously wicked; shameless; insolent; impudent: as, an audacious traitor; an audacious calumny; “audacious cruelty,”

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. disposed to venture or take risks
  • adj. unrestrained by convention or propriety
  • adj. invulnerable to fear or intimidation


French audacieux, from Old French audace, boldness, from Latin audācia, from audāx, audāc-, bold, from audēre, to dare, from avidus, avid; see avid.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin audacia ("boldness"), from audax ("bold"), from audeō ("I am bold, I dare") (Wiktionary)



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  • willing to be bold in social situations or to take risks

    As all of the other campers cowered in their tents, Bill, armed only with a flashlight, audaciously tracked down the bear that had raided their food.

    October 12, 2016