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