Effectual and Nonfunctional

Effectual

Effectual adjective - Producing or capable of producing a desired result.

Nonfunctional is an antonym for effectual.

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

Effectual is an antonym for nonfunctional.
Cite this Source
Nonfunctional and Effectual. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/effectual/nonfunctional
Effectual & Nonfunctional. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/effectual/nonfunctional>.
Nonfunctional or Effectual. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/effectual/nonfunctional.
Google Ngram Viewer shows how "effectual" and "nonfunctional" have occurred on timeline