business vs sluggish

business is a noun but sluggish is not a noun.

Word	Noun	Adjective	Verb	Adverb
business	Yes	No	No	No
sluggish	No	Yes	No	No

business (noun)	sluggish (noun)
the principal activity in your life that you do to earn money
the activity of providing goods and services involving financial and commercial and industrial aspects
the volume of commercial activity
incidental activity performed by an actor for dramatic effect
an immediate objective
a rightful concern or responsibility
a commercial or industrial enterprise and the people who constitute it
customers collectively
business concerns collectively

business (adjective)	sluggish (adjective)
	slow and apathetic
	(of business) not active or brisk
	slow or slothful