infirm vs feeble

infirm and feeble both are adjectives.

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

As adjectives, infirm and feeble are synonyms defined as:

Other synonyms of infirm include debile, decrepit, rickety, sapless, weak, weakly.

infirm (adjective)	feeble (adjective)
lacking bodily or muscular strength or vitality	lacking bodily or muscular strength or vitality
lacking firmness of will or character or purpose	lacking strength
	lacking strength or vigor
	pathetically lacking in force or effectiveness