What is the state of matter that has no definite shape but has a definite volume?

The state of matter that has no definite shape but has a definite volume is indeed liquid. In this state, molecules are closely packed together, which allows liquids to maintain a constant volume. However, the arrangement of these molecules is not fixed, enabling liquids to flow and take the shape of their container. This characteristic allows liquids to conform to various shapes while retaining a consistent volume, distinguishing them from solids, which have both a fixed shape and volume, and gases, which do not have a definite shape or volume. Matter, though a term that encompasses all states of substance, does not specify the properties tied to any particular state.