adj. without flinching; staying committed despite any difficulty; steadfast
the GNU version of the Collaborative International Dictionary of English
adj. Not flinching or shrinking; unyielding.
The Century Dictionary and Cyclopedia
Not flinching; not shrinking: as, unflinching bravery.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. not shrinking from danger
Word Usage
"As far as Slaughter is concerned, that is her ultimate riposte to those who think she should show more decorum when detailing every violation in unflinching detail."