A terminal (1, 1a, 1b, 1c) for connection to a covered conductor wire, the terminal (1, 1a, 1b, 1c) comprising: a terminal main body; and a crimping portion formed by rolling a body to thereby obtain a cylindrical body and joining the side edge portions of body together at a joining portion; wherein the crimping portion includes a conductor wire crimping portion for crimping a conductor wire exposed from a covering portion of the covered conductor wire, wherein the conductor wire crimping portion includes a plurality of depressions (13a, 13b, 13c) on an inner surface thereof, the depressions (13a, 13b, 13c) being formed in a plurality of rows in an axial direction of the conductor wire crimping portion, wherein the crimping portion further includes a cover crimping portion for crimping the covering portion of the covered conductor wire, wherein a front end portion of the crimping portion is further provided with a sealing portion facing the terminal main body so that the crimping portion is sealed to be watertight by the joining portion and the sealing portion except for a rear end portion of the crimping portion through which the covered conductor wire is inserted, by bringing the cover crimping portion and the covering portion into intimate contact with each other after crimping the covered conductor wire, and an inclined outer surface on the upper side of the terminal (1, 1a, 1b, 1c) facing the terminal main body, wherein the joining portion joining the side edge portions of body is also formed in the inclined outer surface, characterized in that the joining portion and the sealing portion are welded, an inclined inner surface facing the rear end portion of the crimping portion is formed between the sealing portion and the conductor wire crimping portion, wherein the inclined inner surface is to facilitate the conductor wire flowing into the front end portion of the crimping portion when crimping the conductor wire crimping portion; the plurality of depressions (13a, 13b, 13c) include main depressions formed at a substantial center in the axial direction of the conductor wire crimping portion and sub-depressions (13b, 13c) formed on both sides of the main depressions; the main depressions being formed substantially across an entire periphery of the conductor wire crimping portion, and the sub-depressions (13b, 13c) having a formation range shorter than that of the main depressions and not being formed on an upper side of the conductor wire crimping portion; and at least one of the sub-depressions (13b, 13c) is formed on the lower side of the terminal (1, 1a, 1b, 1c) in the conductor wire crimping portion. a terminal main body; and a crimping portion formed by rolling a body to thereby obtain a cylindrical body and joining the side edge portions of body together at a joining portion; wherein the crimping portion includes a conductor wire crimping portion for crimping a conductor wire exposed from a covering portion of the covered conductor wire, wherein the conductor wire crimping portion includes a plurality of depressions (13a, 13b, 13c) on an inner surface thereof, the depressions (13a, 13b, 13c) being formed in a plurality of rows in an axial direction of the conductor wire crimping portion, wherein the crimping portion further includes a cover crimping portion for crimping the covering portion of the covered conductor wire, wherein a front end portion of the crimping portion is further provided with a sealing portion facing the terminal main body so that the crimping portion is sealed to be watertight by the joining portion and the sealing portion except for a rear end portion of the crimping portion through which the covered conductor wire is inserted, by bringing the cover crimping portion and the covering portion into intimate contact with each other after crimping the covered conductor wire, and an inclined outer surface on the upper side of the terminal (1, 1a, 1b, 1c) facing the terminal main body, wherein the joining portion joining the side edge portions of body is also formed in the inclined outer surface, characterized in that the joining portion and the sealing portion are welded, an inclined inner surface facing the rear end portion of the crimping portion is formed between the sealing portion and the conductor wire crimping portion, wherein the inclined inner surface is to facilitate the conductor wire flowing into the front end portion of the crimping portion when crimping the conductor wire crimping portion; the plurality of depressions (13a, 13b, 13c) include main depressions formed at a substantial center in the axial direction of the conductor wire crimping portion and sub-depressions (13b, 13c) formed on both sides of the main depressions; the main depressions being formed substantially across an entire periphery of the conductor wire crimping portion, and the sub-depressions (13b, 13c) having a formation range shorter than that of the main depressions and not being formed on an upper side of the conductor wire crimping portion; and at least one of the sub-depressions (13b, 13c) is formed on the lower side of the terminal (1, 1a, 1b, 1c) in the conductor wire crimping portion.