vague vs undefinable

vague and undefinable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
vague	No	Yes	No	No
undefinable	No	Yes	No	No

vague (adjective)	undefinable (adjective)
not precisely limited, determined, or distinguished	not capable of being precisely or readily described; not easily put into words
lacking clarity or distinctness
not clearly expressed or understood