Wiktionary
unfrightened
a. Not frightened; unafraid.
WordNet
unfrightened
adj. not affected by fright
Usage examples of "unfrightened".
And now he was looking straight down the long Luger barrel, at Del's eyes, excited but unfrightened, that gazed straight back at him.
I mean the person who loves the clean, steady, unfrightened eyes of man looking through a telescope and the white stare of an imbecile--equally, I mean quite a large, generous, magnanimous company.