self collected
/ˌsɛlf kəˈlɛktɪd/
adjective
- Calm and in control of one's emotions, especially in a difficult situation.
- He was surprisingly self-collected during the job interview, answering every question with poise.
- Even during the emergency, she remained self-collected and gave clear instructions.
- The teacher stayed self-collected when the fire alarm went off, guiding students calmly to the exit.