Water-obstructing threshold (600; 700) evidently intended for placing between two vertical support structures, such as jambs, placed at a mutual distance, the threshold comprising: a profile (612; 712) placeable between the support structures; an elongate element (611; 711) which is or can be connected to the profile, comprising a flexible and/or resilient part, which elongate element extends over a length at least corresponding to the distance between the support structures; an elongate cavity (640; 740) bounded on an upper side of the threshold by the elongate element and on the underside by the elongate element and/or the profile, wherein the flexible and/or resilient part is configured to form an at least partially compressible threshold between the support structures; the water-obstructing threshold further comprising on at least one end surface of the elongate element an end part (690; 890) coupled thereto, wherein the end part comprises a first upright surface, wherein, when the threshold is placed between the support structures, the first upright surface lies substantially parallel to a first surface of the support structure and is connectable thereto; wherein the end part is provided with a coupling part for coupling to the elongate element, wherein the coupling part extends in the longitudinal direction of the threshold and wherein the coupling part engages in the elongate cavity; the water-obstructing threshold further comprising a force distributor (692; 893) formed in at least one of the coupling part and the elongate element, which force distributor is configured to minimize stress in the water-obstructing threshold at the ends thereof as a result of load on the water-obstructing threshold by absorbing the load in order to prevent cracking of the elongate element and/or breaking of the connection between the end part and the support structure; wherein the force distributor is configured to limit the compressibility of the elongate element, wherein the compressibility decreases toward the end of the water threshold, characterized in that the force distributor comprises structures which extend in height direction and the height of which increases toward the end of the threshold. a profile (612; 712) placeable between the support structures; an elongate element (611; 711) which is or can be connected to the profile, comprising a flexible and/or resilient part, which elongate element extends over a length at least corresponding to the distance between the support structures; an elongate cavity (640; 740) bounded on an upper side of the threshold by the elongate element and on the underside by the elongate element and/or the profile, wherein the flexible and/or resilient part is configured to form an at least partially compressible threshold between the support structures; the water-obstructing threshold further comprising on at least one end surface of the elongate element an end part (690; 890) coupled thereto, wherein the end part comprises a first upright surface, wherein, when the threshold is placed between the support structures, the first upright surface lies substantially parallel to a first surface of the support structure and is connectable thereto; wherein the end part is provided with a coupling part for coupling to the elongate element, wherein the coupling part extends in the longitudinal direction of the threshold and wherein the coupling part engages in the elongate cavity; the water-obstructing threshold further comprising a force distributor (692; 893) formed in at least one of the coupling part and the elongate element, which force distributor is configured to minimize stress in the water-obstructing threshold at the ends thereof as a result of load on the water-obstructing threshold by absorbing the load in order to prevent cracking of the elongate element and/or breaking of the connection between the end part and the support structure; wherein the force distributor is configured to limit the compressibility of the elongate element, wherein the compressibility decreases toward the end of the water threshold, characterized in that the force distributor comprises structures which extend in height direction and the height of which increases toward the end of the threshold.