spectral

/หˆspษ›ktษนษ™ษซ/

IPA: /S P EH1 K T R AH0 L/

adjective
  1. 1

    Of, or pertaining to, spectres; ghostly.

    โ€œThe spectral chain-rattling and moans gave me the chills.โ€

  2. 2

    Of, or pertaining to, spectra; classified according to frequency or wavelength (of light etc)

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Antonyms

Source: https://en.wiktionary.org/wiki/spectral