say it: FUHNGK-shuh-nuhl
functional is an adjective meaning "designed for or capable of a particular function or use". It carries 6 recorded senses.
designed for or capable of a particular function or use
“a style of writing in which every word is functional”
“functional architecture”
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”
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”
“an operational aircraft”
“the dishwasher is now in working order”
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”
(of e.g. a machine) performing or capable of performing
“in running (or working) order”
“a functional set of brakes”
Definitions, synonyms and semantic relations for functional come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.