descriptive vs undescriptive

descriptive and undescriptive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
descriptive	No	Yes	No	No
undescriptive	No	Yes	No	No

descriptive (adjective)	undescriptive (adjective)
of or relating to an approach to linguistic analysis that aims at the description of a language's forms, structures and usage	not successful in describing
serving to describe or inform or characterized by description