An electric wire with a terminal connector 10 includes an electric wire 11 and a female terminal connector 12 crimped onto a core wire 13 exposed at the electric wire 11. A female terminal connector 12 has a wire barrel 16 having a surface to be applied to the core wire 13. The surface has a plurality of recesses 18 formed therein. Each recess 18 has a parallelogram-shaped opening edge. The opening edge of the recess 18 includes a pair of first opening edges 19 that are parallel to each other and a pair of second opening edges 20 that are parallel to each other and different from the first opening edges 19. The recesses 18 are spaced in the extending direction of the first opening edges 19 and are spaced in the extending direction of the second opening edges 20.