feeble vs lame

feeble is not a noun while lame is a noun.

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

As adjectives, feeble and lame are synonyms defined as:

feeble (noun)	lame (noun)
	a fabric interwoven with threads of metal
	someone who doesn't understand what is going on

feeble (adjective)	lame (adjective)
lacking bodily or muscular strength or vitality	pathetically lacking in force or effectiveness
lacking strength	disabled in the feet or legs
lacking strength or vigor
pathetically lacking in force or effectiveness

feeble (verb)	lame (verb)
	deprive of the use of a limb, especially a leg