Wordnet 3.0
ADJECTIVE (1)
1. 
 in full control of your faculties; 
- Example: "the witness remained collected throughout the cross-examination"- Example: "perfectly poised and sure of himself"- Example: "more self-contained and more dependable than many of the early frontiersmen"- Example: "strong and self-possessed in the face of trouble"[syn: collected, equanimous, poised, self-collected, self-contained, self-possessed]
WordNet (r) 3.0 (2006):
self-collected
    adj 1: 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" [syn:
           collected, equanimous, poised, self-collected,
           self-contained, self-possessed]