Unplaced
/ˌʌnˈpleɪst/
Definition 1 of 2
Pro Tip 1/3Lack of Assignment
Refers to something or someone that hasn't been given a specific role or place. 
The donations were unplaced because the charity event had not yet started.
Pro Tip 2/3Temporary State
Often temporary until the person or item is assigned a place. 
The new books are currently unplaced but will soon be on the library shelves.
Pro Tip 3/3Exclusion
Signals that something or someone is not included in a group or location yet. 
I feel unplaced at school, not yet part of any club or team.