functional

adjective

1. 1

   designed for or capable of a particular function or use

   a style of writing in which every word is functional

   functional architecture

2. 2

   (of e.g. a machine) performing or capable of performing

   in running (or working) order

   a functional set of brakes

3. 3

   involving or affecting function rather than physiology

   functional deafness

4. 4

   designed for or adapted to a function or use

   functional education selects knowledge that is concrete and usable rather than abstract and theoretical

   functional architecture

5. 5

   fit or ready for use or service

   the toaster was still functional even after being dropped

   the lawnmower is a bit rusty but still usable

6. 6

   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