powerless vs feeble

powerless and feeble both are adjectives.

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

powerless (adjective)	feeble (adjective)
lacking power	lacking bodily or muscular strength or vitality
	lacking strength
	lacking strength or vigor
	pathetically lacking in force or effectiveness