Provided is an underpants-type wearable article for adults which is provided with a relatively slim liquid-absorbing core, is capable of temporarily diffusing and retaining a body fluid in an amount equal to or greater than the water-retention amount of the liquid-absorbing core, and is capable of being worn by women without any sensation of resistance. A first dimension (L1) from the lower end edge (14a) to the upper end edge (14b) of a front waist panel (14) in a non-extended state is smaller than a second dimension (L2) from the lower end edge (14a) to the lower end edge of an absorption panel (16). The sum total of the first dimension (L1) and the second dimension (L2) is 250-290 mm. A fourth dimension (L4) of one of a pair of non-overlapped sections of the lower end edge (14a) in the horizontal direction (X), said non-overlapped sections being positioned outside in the horizontal direction (X) with respect to a section of the lower end edge (14a) which overlaps the absorption panel (16), is 45-80% the size of a third dimension (L3) in the horizontal direction (X) of the section of the lower end edge (14a) which overlaps the absorption panel (16). The water-retention amount of an absorbent body is 150-400 g. The extensional stress in an expansion/contraction region in which front waist elastic bodies (20) are disposed is higher than the extensional stress in an expansion/contraction region in which rear waist elastic bodies (23) are disposed.L'invention fournit un article à porter de type culotte pour adulte qui possède un noyau absorbant le liquide relativement mince, qui diffuse et retient temporairement un liquide en quantité supérieure ou égale à la quantité de rétention de liquide du noyau absorbant le liquide, et qui peut être porté par une femme sans tendance au rejet. Une première dimension (L1) d'un bord extrémité inférieur (14a) au bord extrémité supérieur (14b) d'un panneau taille avant (14), en mode non étiré, est inférieure à une seconde dimension (
