trusty vs responsible

trusty is a noun but responsible is not a noun.

Word	Noun	Adjective	Verb	Adverb
trusty	Yes	Yes	No	No
responsible	No	Yes	No	No

trusty (noun)	responsible (noun)
a convict who is considered trustworthy and granted special privileges

trusty (adjective)	responsible (adjective)
worthy of trust or belief	worthy of or requiring responsibility or trust; or held accountable
	being the agent or cause
	having an acceptable credit rating