|presence of mind|
|the ability to remain calm and act constructively during times of crisis|
|a chattering or flighty, light-headed person.|
|a fool or simpleton; ninny.|
presence of mind pres·ence of mind (prěz'əns)
The ability to think and act calmly and efficiently, especially in an emergency situation.
presence of mind
The ability to act sensibly, promptly, and appropriately, especially in a difficult situation or emergency. For example, Distraught about losing her wallet and passport, she had the presence of mind to notify the authorities at once. This idiom in effect says that one's mind is present and functioning. [Second half of 1600s]