Functional
Functional adjective - Being in effective operation.
Usage example: I don't think that vending machine is functional, so don't put money into it
Useful is a synonym for functional in practical topic. In some cases you can use "Useful" instead an adjective "Functional", when it comes to topics like property, used, working, usable. popular alternative
Useful
Useful adjective - Capable of being put to use or account.
Usage example: useful suggestions for limiting the amount of food we eat
Functional is a synonym for useful in property topic. You can use "Functional" instead an adjective "Useful", if it concerns topics such as beneficial, practical, used, usable. popular alternative
Mutual synonyms
Related pairs
- advantageous and functional
- advantageous and useful
- helpful and functional
- helpful and useful
- convenient and functional
- convenient and useful
- effective and functional
- effective and useful
- profitable and functional
- profitable and useful
- beneficial and functional
- beneficial and useful
- practical and functional
- practical and useful
Both words in one sentence
- Xander. Whether it was magic tuxedo, skill with a crane, or just a combination of borderline Too Dumb to Live and luck, Xander managed to be a useful and functional member of a team that included a slayer, a powerful witch, a werewolf, a vampire, a half-demon, and a high school librarian.
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Occasionally someone has similar modifications done voluntarily, to acquire useful features such as functional gills.
Source: Mix-and-Match Critters - Both are only ever useful (which is to say, functional at all) in one fight, which is incidentally the same fight.
Source: Video Game / Kinder
Cite this Source
Useful and Functional. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/functional/useful
Functional & Useful. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/functional/useful>.
Useful or Functional. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/functional/useful.
Google Ngram Viewer shows how "functional" and "useful" have occurred on timeline