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# The Good Oil Word of the Day
- URL: https://goodoil.news/the-good-oil-word-of-the-day-456/
- Published: 2025-11-07T17:15:52.000Z
- Updated: 2025-11-07T17:15:51.000Z
- Author: David Theobald
- Tags: General, Word of the Day

The word for today is…

adamant (adjective, noun) -

*adjective*  
: unshakable or insistent especially in maintaining a position or opinion : unyielding

*noun*  
1: a stone (such as a diamond) formerly believed to be of impenetrable hardness  
2: an unbreakable or extremely hard substance

Source : [Merriam-Webster](https://www.merriam-webster.com/dictionary/adamant?ref=goodoil.news)

Etymology : A person who is adamant about something has formed an opinion or taken a position that is not going to change because the person is determined to keep that opinion or position. If you're adamant about a decision you've made, no one can convince you that it was a mistake. If you're adamant that something be done (or not be done), you insist that it be (or not be) so.

The adjective dates to the early 1800s but it comes from a much older—and now much less common—noun. An adamant is an imaginary stone of impenetrable hardness. Historically, the word applied to actual stones (and other substances) believed to be impenetrable; in the 17th century the word was used as a synonym of diamond. The noun adamant comes from a Latin word meaning "material of extreme hardness, diamond."

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