spectral
adjective
[ ˈspɛktr(ə)l ]
• of or like a ghost.
• "a spectral, menacing face"
Similar:
ghostly,
wraithlike,
shadowy,
phantom,
incorporeal,
insubstantial,
disembodied,
unearthly,
other-worldly,
ghastly,
eerie,
weird,
uncanny,
spooky,
phantasmal,
phantasmic,
Origin:
early 19th century: from spectre + -al.
spectral
adjective
• of or concerning spectra or the spectrum.
Origin:
mid 19th century: from spectrum + -al.
