coolheaded vs nerveless

coolheaded and nerveless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
coolheaded	No	Yes	No	No
nerveless	No	Yes	No	No

As adjectives, coolheaded and nerveless are synonyms defined as:

coolheaded and nerveless: marked by calm self-control (especially in trying circumstances); unemotional

Other synonyms of coolheaded include cool.

coolheaded (adjective)	nerveless (adjective)
marked by calm self-control (especially in trying circumstances); unemotional	marked by calm self-control (especially in trying circumstances); unemotional
	lacking strength