unblemished

adj

1. Lacking blemishes; faultless.
2. (figuratively)Free from corruption or evil.

   “His own estate it most decidedly was, for he had paid for it with his own money; but it had not descended to him from a long line of unblemished ancestry.”

   “The lake country is a holiday paradise. All the water sports are practiced. Life is lively without being raucous, the landscape is unblemished by gas stations, souvenir stands, or hot-doggeries.”