1. 鬼怪(似)的;幽灵(似)的
If you describe someone or something as spectral, you mean that they look like a ghost.

1. resembling or characteristic of a phantom

e.g. a ghostly face at the window
a phantasmal presence in the room
spectral emanations
spiritual tappings at a seance

Synonym: apparitionalghostlikeghostlyphantasmalspiritual

2. of or relating to a spectrum

e.g. spectral colors
spectral analysis