post-free vs paid

post-free and paid both are adjectives.

Word	Noun	Adjective	Verb	Adverb
post-free	No	Yes	No	Yes
paid	No	Yes	No	No

post-free (adjective)	paid (adjective)
postpaid	marked by the reception of pay
	involving gainful employment in something often done as a hobby
	yielding a fair profit

post-free (adverb)	paid (adverb)
having the postage paid by the sender