Development
Development noun - A condition or occurrence traceable to a cause.
Usage example: a development that the writers of the law never anticipated or intended
Reason is an antonym for development.
Reason
Reason noun - Someone or something responsible for a result.
Usage example: what's the meteorological reason for tornadoes?
Development is an antonym for reason.
How words are described
Both words in one sentence
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It's also hinted that the Tesseract/Cosmic Cube was the only reason why they even made it out of development instead of scrapped in real life.
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An NPC in EarthBound Beginnings wonders when EarthBound is going to be released, and for good reason: Mother 2 was in development for a then unheard-of four years.
Source: Saved from Development Hell -
American Girl is guilty of this - for no explicable reason other than mentioning on their Facebook page that they are comfortable with iOS development.
Source: No Port For You
Cite this Source
Reason and Development. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/development/reason
Development & Reason. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/development/reason>.
Reason or Development. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/development/reason.
Google Ngram Viewer shows how "development" and "reason" have occurred on timeline