functional (adj.)(of e.g. a machine) performing or capable of performing;
a functional set of brakes
functional (adj.)designed for or capable of a particular function or use;
a style of writing in which every word is functional
functional (adj.)involving or affecting function rather than physiology;
functional (adj.)relating to or based on function especially as opposed to structure; "the problem now is not a constitutional one; it is a functional one";
delegates elected on a functional rather than a geographical basis
functional (adj.)fit or ready for use or service;
the toaster was still functional even after being dropped
functional (adj.)designed for or adapted to a function or use;
functional education selects knowledge that is concrete and usable rather than abstract and theoretical