Unapproved (adjective)

Not having received approval or endorsement; not acceptable or sanctioned.

Origin:

The word 'unapproved' originated from the late 16th century from the word 'un-' meaning 'not' and 'approve' meaning 'to give approval'.

Examples:

1. The unapproved product was removed from the shelves.
2. The unapproved proposal was rejected by the board.
3. The unapproved idea was deemed too risky.
4. The unapproved behavior was not tolerated in the workplace.
5. The unapproved application was denied due to missing information.