limp vs lax

limp is a noun but lax is not a noun.

Word	Noun	Adjective	Verb	Adverb
limp	Yes	Yes	Yes	No
lax	No	Yes	No	No

limp (noun)	lax (noun)
the uneven manner of walking that results from an injured leg

limp (adjective)	lax (adjective)
lacking or having lost rigidity	lacking in firmness or tension; not taut
without energy or will	pronounced with muscles of the tongue and jaw relatively relaxed (e.g., the vowel sound in `bet')
	lacking in rigor or strictness
	emptying easily or excessively

limp (verb)	lax (verb)
walk impeded by some physical limitation or injury
proceed slowly or with difficulty