WATER CLOSET

A water closet comprises a bowl section (2) having an inclined surface (2a) inclining downward, a rim water passage (1b) formed on an upper peripheral edge portion of the bowl section (2) to communicate to a flush water supply passage and having a plurality of water-jet holes (1c, 1d) opened toward the bowl section, and a drainage passage (3), of which an inlet (4) is provided near the bottom portion of the bowl section (2) and has a substantially inverted U-shape. The inlet (4) of the drainage passage (3) is provided with an inclined surface (4c) which inclines from an inlet base (4a) at an upper position to an inlet end (4b) at a lower position and is formed to be substantially in parallel to an inclined surface near the bottom portion of the bowl section (2).