Functional and Operational

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

Operational is a synonym for functional in working topic. In some cases you can use "Operational" instead an adjective "Functional". popular alternative

Operational

Operational adjective - Being in effective operation.
Usage example: a fully operational oil refinery

Functional is a synonym for operational in working topic. You can use "Functional" instead an adjective "Operational", if it concerns topics such as in working order. popular alternative

Both words in one sentence

Cite this Source
Operational and Functional. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/functional/operational
Functional & Operational. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/functional/operational>.
Operational or Functional. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/functional/operational.
Google Ngram Viewer shows how "functional" and "operational" have occurred on timeline