Learn English – word to describe an individual who has complete control over his negative and positive emotions

adjectivesmeaningsingle-word-requests

Let's say examples of negative emotions are sadness and despair, and
example of positive emotions are happiness and pride.

So is there a word that describes a person who has total, complete control over his negative and positive emotions? I'm talking about someone who can manage his emotions in a long-lasting way, not just temporarily. Generally speaking I'm looking for an adjective, but a noun will also be useful.

Example Sentences:

1.When images of scenes that normally trigger strong emotions were shown to him he demonstrated no emotion

2.His face did not display any emotion despite the [sad]news just relayed to him.

Best Answer

Equanimous

from Wikipedia: "(Latin: æquanimitas having an even mind; aequus even animus mind/soul) is a state of psychological stability and composure which is undisturbed by experience of or exposure to emotions, pain, or other phenomena that may cause others to lose the balance of their mind."