the GNU version of the Collaborative International Dictionary of English
adj. Incapable of being daunted; undaunted; bold; fearless; intrepid.
The Century Dictionary and Cyclopedia
Incapable of being daunted; bold; fearless; intrepid.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. invulnerable to fear or intimidation
Word Usage
"I have seen you again + again at a time of confusion take the course almost blindly because long after your powers of ratiocination were exhausted you clung to the idea of dauntless courage."