adamant: Meaning and Definition of
ad•a•mant
Pronunciation: (ad'u-munt, -mant"), [key]
— adj.
- utterly unyielding in attitude or opinion in spite of all appeals, urgings, etc.
- too hard to cut, break, or pierce.
—n.
- any impenetrably or unyieldingly hard substance.
- a legendary stone of impenetrable hardness, formerly sometimes identified with the diamond.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.