fluid
adjective
1. subject to change; variable
- a fluid situation fraught with uncertainty
Similar word(s): changeable, changeful, unstable
2. characteristic of a fluid; capable of flowing and easily changing shape
Similar word(s): liquid, runny
3. smooth and unconstrained in movement
- the fluid motion of a cat
Similar word(s): graceful, fluent, liquid, smooth
4. in cash or easily convertible to cash
- liquid (or fluid) assets
Similar word(s): disposable, liquid
5. affording change (especially in social status)
- Britain is not a truly fluid society
Similar word(s): changeable, changeful, mobile