1) Fearless 2) Not blinking 3) Not shrinking from danger 4) Not varying or wavering 5) Showing no visible emotion 6) Unemotional Found on https://www.crosswordclues.com/clue/unblinking
not blinking. · without displaying response, as surprise, confusion, or chagrin: an unblinking reaction to the charges. · not varying or wavering; fearless; forthright: unblinking devotion. Found on https://www.infoplease.com/dictionary/unblinking