Self-Possessed – Calm, confident and in control of emotions at all times
(Pronounced self puh-zest)
Selfies on her Facebook showed that she possessed (self-possessed) calm and confident control in times of great danger.
Examples of self-possessed in a sentence
She was a confident and self-possessed public speaker, even with the largest crowds.
He is growing into a self-possessed and articulate young man.
She always seemed so poised, so self-possessed, but really she was terrified.