unreceived
/ˌʌn.rɪˈsɛvd/Definitions
1. adjective
not having been received or accepted
“The company received several complaints regarding the unreceived refunds.”
2. noun
a thing that has not been received
“The unreceived packages were left at the doorstep.”
3. verb
to not receive or accept something
“The charity has unreceived donations from several major corporations.”