Nonfunctional and Rational

Opposite meaning words

Nonfunctional adjective - Not being in working order.

Show all Definitions

Rational is an antonym for nonfunctional in topics: impracticable, unrealistic.

Rational adjective - Having the ability to reason.

Show all Definitions

Nonfunctional is an antonym for rational.

Cite this Source

Rational and Nonfunctional. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/nonfunctional/rational

Nonfunctional & Rational. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nonfunctional/rational>.

Rational or Nonfunctional. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/nonfunctional/rational.

Google Ngram Viewer shows how "nonfunctional" and "rational" have occurred on timeline