Unpreviewed vs Unreviewed - What's the difference?

unpreviewed | unreviewed |

As adjectives the difference between unpreviewed and unreviewed

is that unpreviewed is that has not been previewed while unreviewed is not reviewed.

Preview vs Unpreviewed - What's the difference?

preview | unpreviewed |

As a noun preview

is a foretaste of something.

As a verb preview

is to show or watch something, or part of it, before it is complete.

As an adjective unpreviewed is

that has not been previewed.