IPA: //ʌnˈflɪn.tʃɪŋ//
KK: /ʌnˈflɪnʧɪŋ/
Not showing fear or hesitation; being very determined and steady in difficult situations.
She remained unflinching in the face of danger, showing great courage.
Unflinching → It is formed from "un-" (meaning not) and "flinch" (from Old English *flencan*, meaning to recoil or draw back). The word "unflinching" means not recoiling or drawing back, indicating steadfastness or bravery in the face of difficulty.
Think of someone who does not 'recoil' ('flinch') at challenges — the 'un-' means not, so unflinching describes someone who stands firm.