Synonyms of self possessed

Adjective

1. collected, equanimous, poised, self-collected, self-contained, self-possessed, composed (vs. discomposed)

usage: in full control of your faculties; "the witness remained collected throughout the cross-examination"; "perfectly poised and sure of himself"; "more self-contained and more dependable than many of the early frontiersmen"; "strong and self-possessed in the face of trouble"