PROBLEM TO BE SOLVED: To provide a synthetic resin container (2) which is at least partially improved in ease of use, and which is used when adhering a dental liquid to a tip end of a slender applicator and coating the dental liquid to an affected part.SOLUTION: A container (2) comprises a bottom wall (4) and a side wall (6) extending upward from the bottom wall (4), the bottom wall (4) and the side wall (6) defines a space whose upper face is opened. The space has a package storage part (8) and an applicator insertion part (10) adjacent in a lateral direction.SELECTED DRAWING: Figure 5