impracticable vs unworkable

impracticable and unworkable both are adjectives.

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

As adjectives, impracticable and unworkable are synonyms defined as:

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

Other synonyms of impracticable include infeasible, unfeasible.

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