uneconomical vs wasteful

uneconomical and wasteful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uneconomical	No	Yes	No	No
wasteful	No	Yes	No	No

As adjectives, uneconomical and wasteful are synonyms defined as:

uneconomical and wasteful: inefficient in use of time and effort and materials

uneconomical (adjective)	wasteful (adjective)
inefficient in use of time and effort and materials	tending to squander and waste
wasteful of resources	laying waste
	inefficient in use of time and effort and materials