Phantasmal

Adjective

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