fluid

affording change (especially in social status)

“Britain is not a truly fluid society”

characteristic of a fluid; capable of flowing and easily changing shape

smooth and unconstrained in movement

“the fluid motion of a cat”

in cash or easily convertible to cash

“liquid (or fluid) assets”

subject to change; variable

“a fluid situation fraught with uncertainty”

a substance that is fluid at room temperature and pressure

continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas