There is a symbol from the book "the mortal instruments". If you look up fearless rune you should find it.
brave, undaunted, bold, confident, unafraid, dauntless, daring, courageous, dashing, heroic
Courageous would work. Also, fearless. Bravery is being able to plot and execute an adventure. Being fearless is not being scared while doing it.
courageous
Gaston
Maka'u 'ole means not being afraid and wiwo'olemeans courage or courageous.
fearless is positive, meaning brave, courageous.
"Courageous firefighter" isn't a word.
Dauntless, brave, courageous, etc.
COURAGEOUS : possessing courage ; brave ; intrepid ; fearless.
tiger is powerful and fearless, courageous and ferocious
Somebody who is brave, and courageous yet gallant and generous in victory
Brave, fearless, courageous are similar words to valiant