phantasmal

adjective3

1. •
   Of or pertaining to, or having the characteristics of, a phantasm (“something seen but having no physical reality”); imaginary, unreal.

   • The matter of which dreams are made / Not more endowed with actual life / Than this phantasmal portraiture / Of wandering human thought. — 1813
2. •
   Of or pertaining to, or having the characteristics of, a phantom (“apparition or ghost”); ghostly, spectral.
3. •
   Of or pertaining to, or having the characteristics of, a phantasm (“perception or vision of a living or dead person who is not physically present, often through telepathy”).