Как по Английски будет spettrale

A ghost.

Unnatural or mysterious, especially in a disturbing way.

Of or like a ghost in appearance or sound; eerie and unnatural.

Of or like a ghost in appearance or sound; eerie and unnatural.

The quality of being pale and transparent in a way that does not seem real, like a ghost

Of or like a ghost.

Relating to or produced by a spectrum (= the set of colours into which a beam of light can be separated, or a range of light or radio waves)

Pale and thin or weak