Here are some additional nuances:
* Positive connotation: Adamant can sometimes be used to describe someone who is strong-willed, principled, and committed to their convictions. This can be seen as a positive trait, particularly when the person's beliefs are considered just or ethical.
* Negative connotation: However, it can also be used to describe someone who is stubborn, rigid, and uncompromising. This can be seen as a negative trait, especially when the person's beliefs are unreasonable or harmful.
* Neutral connotation: In some cases, adamant can be used neutrally to simply describe someone who is firmly convinced of something, without judging their stance as positive or negative.
Ultimately, the meaning of "adamant" depends on the context and the speaker's intention.