1. [ adjective ] designed for or capable of a particular function or use

"a style of writing in which every word is functional" "functional architecture"

Related terms: nonfunctional utilitarian structural serviceable function
2. [ adjective ] (pathology) involving or affecting function rather than physiology

"functional deafness"

Related terms: organic pathology
3. [ adjective ] 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"

Related terms: practical
4. [ adjective ] fit or ready for use or service
Synonyms: operational useable operable in_working_order usable

"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"

Related terms: serviceable
5. [ adjective ] 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"

Related terms: function
6. [ adjective ] (of e.g. a machine) performing or capable of performing
Synonyms: working operative running

"in running (or working) order" "a functional set of brakes"

Related terms: functioning
Similar spelling:   functionally