flinch
UK: flɪntʃ | US: flɪntʃ
vi. to make a quick, nervous movement as an instinctive reaction to fear, pain, or surprise
vi. to hesitate or shrink from doing something difficult or unpleasant
The word "flinch" likely entered English in the 16th century, possibly derived from Old French flenchir, meaning "to bend or twist." Its core idea revolves around a physical or metaphorical recoil—whether from pain, fear, or reluctance. Over time, it evolved to emphasize involuntary reactions, such as wincing or hesitation. The exact root remains debated, but its vivid imagery of bending away from discomfort persists in modern usage.
She didn’t flinch when the doctor gave her the injection.
He flinched as the loud explosion echoed nearby.
The soldier never flinched in the face of danger.
I flinched at the thought of speaking in public.
The dog flinched when the stranger reached out suddenly.