Functioning and Operational

Functioning

Functioning adjective - Being in effective operation.
Usage example: looked for a functioning washing machine, but the few that weren't broken were in use

Operational is a synonym for functioning in active topic. In some cases you can use "Operational" instead an adjective "Functioning", when it comes to topics like functional. popular alternative

Operational

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

Functioning is a synonym for operational in functional topic. You can use "Functioning" instead an adjective "Operational", if it concerns topics such as working, up and running. popular alternative

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