adj

adamant

AD-uh-muhnt

adj

Refusing to change one's mind or position; firmly determined.

"She was adamant that the deadline could not be moved."

"He remained adamant despite the pressure from his colleagues."

noun

A legendary stone or mineral once believed to be unbreakable, historically linked to diamond or lodestone.

"In old tales, the hero's shield was said to be forged from adamant."

How to Use Adamant

Learner’s notes

In plain EnglishUnshakeably firm and determined — someone adamant will not budge on their position.

Easily confused with

diamond →

Common pairings

adamant that remain adamant stay adamant

more adamant comparative, adamants plural, most adamant superlative

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She was _____ that the deadline could not be moved.

From Latin adamas ("hard as steel"), from Greek adamas ("invincible"). A doublet of "diamond," which comes from the same root.