Challenging and Facile

Challenging

Challenging adjective - Requiring considerable physical or mental effort.
Usage example: an exceptionally challenging brainteaser

Facile is an antonym for challenging.

Nearby Words: challenge, challenged, challenger

Facile

Facile adjective - Having or showing a lack of depth of understanding or character.

Challenging is an antonym for facile.
Cite this Source
Facile and Challenging. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/challenging/facile
Challenging & Facile. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/challenging/facile>.
Facile or Challenging. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/challenging/facile.
Google Ngram Viewer shows how "challenging" and "facile" have occurred on timeline