invulnerable vs secure

invulnerable and secure both are adjectives.

Word	Noun	Adjective	Verb	Adverb
invulnerable	No	Yes	No	No
secure	No	Yes	Yes	No

invulnerable (adjective)	secure (adjective)
immune to attack; impregnable	free from fear or doubt; easy in mind
	free from danger or risk
	not likely to fail or give way
	immune to attack; incapable of being tampered with
	financially safe

invulnerable (verb)	secure (verb)
	make certain of
	cause to be firmly attached
	fill or close tightly with or as if with a plug
	furnish with battens
	get by special effort
	assure payment of