అర్థం : Marked by calm self-control (especially in trying circumstances). Unemotional.
							ఉదాహరణ : 
							Play it cool.
							Keep cool.
							Stayed coolheaded in the crisis.
							The most nerveless winner in the history of the tournament.
							
పర్యాయపదాలు : cool, coolheaded
అర్థం : Lacking strength.
							ఉదాహరణ : 
							A weak, nerveless fool, devoid of energy and promptitude.
							
పర్యాయపదాలు : feeble