unspoofable

English

Etymology

un- +‎ spoofable

Adjective

unspoofable (comparative more unspoofable, superlative most unspoofable)

1. That cannot be spoofed.
   • 2002, Network World (volume 19, number 15, 15 April 2002)

     In the second half of this year, we'll be introducing a secure domain name service that ties a certificate to a domain name to make it unspoofable.