unworkable vs impracticable

unworkable and impracticable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unworkable	No	Yes	No	No
impracticable	No	Yes	No	No

As adjectives, unworkable and impracticable are synonyms defined as:

unworkable and impracticable: not capable of being carried out or put into practice

Other synonyms of unworkable include infeasible, unfeasible.

unworkable (adjective)	impracticable (adjective)
not capable of being carried out or put into practice	not capable of being carried out or put into practice