unsuitable vs ineligible

unsuitable and ineligible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unsuitable	No	Yes	No	No
ineligible	No	Yes	No	No

unsuitable (adjective)	ineligible (adjective)
not conducive to good moral development	not eligible
not worthy of being chosen (especially as a spouse)	prohibited by official rules
not meant or adapted for a particular purpose
not capable of being applied