What is a synonym for adamant?

Here are some synonyms for "adamant", depending on the context:

Strong Determination:

* Unwavering

* Resolute

* Unyielding

* Unbending

* Inflexible

* Indomitable

* Tenacious

* Stubborn (can have a negative connotation)

Hardness:

* Unbreakable

* Impregnable

* Indestructible

* Solid

* Firm

Firmly Stated:

* Categorical

* Definite

* Unqualified

* Positive

The best synonym to use will depend on the specific situation and the meaning you are trying to convey.