hardline vs inflexible

hardline and inflexible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
hardline	No	Yes	No	No
inflexible	No	Yes	No	No

hardline (adjective)	inflexible (adjective)
firm and uncompromising	resistant to being bent
	incapable of change
	not making concessions
	incapable of adapting or changing to meet circumstances