Synonyms for Unblinking (same or very similar meaning)
WordNet sense 1 (unsusceptible to or destitute of or showing no emotion):
unemotionalWordNet sense 2 (not shrinking from danger):
unflinching, unintimidated, unshrinkingWordNet sense 3 (oblivious of dangers or perils or calmly resolute in facing them):
fearless, unafraidFrom the ODE community, based on WordNetadd/edit