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
Nonfunctional is an antonym for functional.
Nonfunctional
Nonfunctional adjective - Not being in working order.
Usage example: that gas pump is nonfunctional, which is the reason for the plastic bag over the nozzle
Functional is an antonym for nonfunctional.
Both words in one sentence
- Unfortunately, Hater built it himself without help from his engineers, so it came out as a barely functional death trap, with half it's features nonfunctional or misfiring.
Cite this Source
Nonfunctional and Functional. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/functional/nonfunctional
Functional & Nonfunctional. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/functional/nonfunctional>.
Nonfunctional or Functional. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/functional/nonfunctional.
Google Ngram Viewer shows how "functional" and "nonfunctional" have occurred on timeline