What is the meaning of "calm, cool and collected"?

The meaning of "calm, cool and collected" is:

relaxed and confident


What is the definition of "calm, cool and collected"?

The definition of "calm, cool and collected" is:

relaxed and confident



"calm, cool and collected" means

relaxed and confident

Example Sentence:

On my first day of school, I was so nervous about everything. My friend was calm, cool and collected!

She was calm, cool and collected before her presentation because she was well-prepared.

From the Blogs:

Mayor Daley is Calm, Cool and Collected

Media:

calm, cool and collected