undiscerning vs purblind

undiscerning and purblind both are adjectives.

Word	Noun	Adjective	Verb	Adverb
undiscerning	No	Yes	No	No
purblind	No	Yes	No	No

undiscerning (adjective)	purblind (adjective)
lacking discernment	having greatly reduced vision
	lacking in insight or discernment