incorrupt

adjective

1. not corrupt; not debased or perverted; morally upright.
2. not to be corrupted; incorruptible.
3. not vitiated by errors or alterations.
4. Obsolete. free from decomposition or putrefaction.

adjective

1. free from corruption; pure
2. free from decay; fresh or untainted
3. (of a manuscript, text, etc) relatively free from error or alteration