adamant

/ˈædəmənt/
adjective
  1. Refusing to be persuaded or to change one's mind; unyielding.
    • She was adamant that the project should be finished on time.
    • The teacher was adamant that students must follow the rules.
    • He remained adamant about his decision despite everyone's objections.
noun
  1. A hard, unbreakable substance (often used figuratively to mean something extremely strong or unyielding).
    • Her will was like adamant, impossible to break.
    • In the legend, the hero's shield was made of adamant.
    • The ancient texts described a mountain of adamant that no tool could cut.
What does "adamant" mean? | whatsthatwordmean | whatsthatwordmean