curable vs hardened

curable and hardened both are adjectives.

Word	Noun	Adjective	Verb	Adverb
curable	No	Yes	No	No
hardened	No	Yes	No	No

curable (adjective)	hardened (adjective)
able to be cured or healed	made hard or flexible or resilient especially by heat treatment
capable of being hardened by some additive or other agent	protected against attack (especially by nuclear weapons)
	made tough by habitual exposure
	converted to solid form (as concrete)
	used of persons; emotionally hardened