nerveless vs feeble

nerveless and feeble both are adjectives.

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

As adjectives, nerveless and feeble are synonyms defined as:

nerveless (adjective)	feeble (adjective)
marked by calm self-control (especially in trying circumstances); unemotional	lacking bodily or muscular strength or vitality
lacking strength	lacking strength
	lacking strength or vigor
	pathetically lacking in force or effectiveness