Definitions of intrepid on the Web:

• audacious: invulnerable to fear or intimidation; "audacious explorers"; "fearless reporters and photographers"; "intrepid pioneers"
  wordnetweb.princeton.edu/perl/webwn

• The Intrepid was a hydrogen gas balloon or aerostat built for use by the Union Army Balloon Corps for aerial reconnaissance purposes during the American Civil War. ...
  en.wikipedia.org/wiki/Intrepid_(balloon_aircraft)

• The Intrepid is a 12-metre class yacht which won the America's Cup in 1967 and again in 1970.
  en.wikipedia.org/wiki/Intrepid_(yacht)

• Fearless; bold; brave
  en.wiktionary.org/wiki/intrepid

• intrepidly - fearlessly: without fear; "fearlessly, he led the troops into combat"
  wordnetweb.princeton.edu/perl/webwn

• intrepidity - dauntlessness: resolute courageousness
  wordnetweb.princeton.edu/perl/webwn

• Intrepidly - Courage, also known as bravery, will, intrepidity, and fortitude, is the ability to confront fear, pain, risk/danger, uncertainty, or intimidation. ...
  en.wikipedia.org/wiki/Intrepidly

• The Intrepids (also known as Les Intrépides), is a French language Canadian TV series for children, released between 1993 and 1996, that ran for ...
  en.wikipedia.org/wiki/The_Intrepids

• intrepidness - The quality of being intrepid; bravery
  en.wiktionary.org/wiki/intrepidness

• intrepidly - In an intrepid manner; fearlessly; daringly; resolutely
  en.wiktionary.org/wiki/intrepidly