the GNU version of the Collaborative International Dictionary of English
adj. Not coined, or minted.
adj. Not fabricated; not artificial or counterfeit; natural.
The Century Dictionary and Cyclopedia
Not coined: as, uncoined silver. Not minted; lacking the stamp of conventionality; hence, natural, unfeigned.
Word Usage
"Picture book bloggers, who read books and post reviews for the uncoined privilege of participating in the greater cultural exchange, now paying for that privilege via stamps and post-office lines."