Competent
Competent adjective - Being what is called for by accepted standards of right and wrong.
Usage example: the arbiter has all the necessary information to make a competent decision on the matter
Unreasonable is an antonym for competent.
Unreasonable
Unreasonable adjective - Having no basis in reason or fact.
Competent is an antonym for unreasonable.
Both words in one sentence
- Played with in that Myeung-joo is competent enough by herself, and stands up to her father when he's being unreasonable about their relationship.
Source: Series / Descendants Of The Sun
Cite this Source
Unreasonable and Competent. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/competent/unreasonable
Competent & Unreasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/competent/unreasonable>.
Unreasonable or Competent. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/competent/unreasonable.
Google Ngram Viewer shows how "competent" and "unreasonable" have occurred on timeline