: of, connected with, or being a function
- the functional differences between the departments
: affecting physiological or psychological functions but not organic structure
: used to contribute to the development or maintenance of a larger whole
: designed or developed chiefly from the point of view of use
- functional and practical school courses
- The design of the building is not only functional but also beautiful.
: performing or able to perform a regular function
- The flashlight was still functional after I had dropped it.