A water-disintegrable absorbent article adapted to be easily peeled off the wearer's undergarment after use. A pantiliner has a topsheet (20) lying on a body side of the wearer, a backsheet (30) and a liquid-absorbent body interposed between the top-and backsheets. The backsheet (30) may be formed of a water-disintegrable fibrous nonwoven fabric of which the component fibers have an orientation extending in a longitudinal direction (Y). On a non-body side, first adhesive regions (6) adapted to be attached to the wearer's undergarment and second adhesive regions (70) allocated on both outer sides in a transverse direction (X) of the first adhesive regions (60) so as to be spaced in the transverse direction (X) from the first adhesive regions (60). The first adhesive regions (60) include front first adhesive regions (61), rear first adhesive regions (63) and central first adhesive regions (62) allocated between the front and rear first adhesive regions (61, 63) spaced apart from each other in the longitudinal direction (Y). The second adhesive regions (70) include front second adhesive regions (71) and rear second adhesive regions (72) spaced apart from each other in the longitudinal direction (Y). The central first adhesive regions (62) are allocated in a space area defined by the front and rear second adhesive regions (71, 72) and arranged in the transverse direction X.