hard-line vs sturdy

hard-line and sturdy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
hard-line	No	Yes	No	No
sturdy	No	Yes	No	No

hard-line (adjective)	sturdy (adjective)
firm and uncompromising	not making concessions
	having rugged physical strength; inured to fatigue or hardships
	substantially made or constructed