Audacious

Audacious   

Pronunciation: [aw-dey-shuh s]

Kind of word: noun

Formal definition: 
"Recklessly bold or daring; fearless "

Informal definition:
Bold and courageous when facing opposition.

Example: The doctor needed to be audacious to speak out against DNA profiling when most of his audience was for it.

Related words

• Brave

Song/Video
https://www.youtube.com/watch?v=3TjRQqAvGkM  
Link to another disctionary:
http://dictionary.reference.com/browse/audacious