Terminal fitting and a method for forming a fluid-proof terminated wire assembly

A terminal fitting formed by bending an electrically conductive plate material, the terminal fitting extending in a forward to rearward direction and comprising:

• a wire connection portion to be electrically connected to a core of a wire;
• and
• at least one insulation barrel rearward of the wire connection portion and to be crimped and connected to an insulation coating of the wire, an inner surface of the insulation barrel being formed with a close-contact portion to be held in close contact with the insulation coating and at least one recessed groove forward of the close-contact portion and spaced from the insulation coating when the at least one insulation barrel is crimped and connected to the insulation coating of the wire;
• wherein
• the recessed groove forms at least one opening at a forward-facing end of the insulation barrel when the insulation barrel is crimped and connected to the insulation coating of the wire so that a fluidproof material can flow through the opening and between the recessed groove and the wire and adhere to at least one of an outer surface of the core and the insulation coating.