varying; changeable; a quantity or thing (e.g. cost, temperature) that can change according to conditions
changing, changeable
Cases of word usage
1) the branch of mathematics that deals with variable quantities (calculus)
2) the total value of everything except one variable (coefficient)
3) a variable factor in an analysis or experiment (parameter)
4) not equal; (especially of work such as writing) variable in quality; not capable, strong etc enough (unequal)
