A terminal fitting is mounted on a terminal accommodation chamber formed in a connector housing by being engaged with an elastically deformable lance provided in the terminal accommodation chamber. The terminal fitting includes a bite resistance increasing part that is formed only at an upper portion of a hole edge engagement end face of an engaging hole to be engaged with the lance and increases a bite resistance to the lance. An lower portion of the hole edge engagement end face is flat. The bite resistance increasing part has a wave-shaped part that is formed by partially pressing the hole edge engagement end face.