spectral

• POS: Adjective
• HYPHEN: spec=tral

CIDE DICTIONARY

spectral, a. 

•  Of or pertaining to a specter; ghosty.  [1913 Webster]

  "He that feels timid at the spectral form of evil is not the man to spread light."  [1913 Webster]
•  Of or pertaining to the spectrum; made by the spectrum; as, spectral colors; spectral analysis.  [1913 Webster]

Spectral lemur. (Zoöl.) See Tarsius.

OXFORD DICTIONARY

spectral, adj.
1 a of or relating to spectres or ghosts. b ghostlike.
2 of or concerning spectra or the spectrum (spectral colours; spectral analysis).

Derivative

spectrally adv.

THESAURUS

spectral

Barmecidal, Barmecide, airy, apparent, apparitional, astral, autistic, bicolor, bicolored, cadaverous, chimeric, chromatic, cold, colorful, colorific, coloring, colory, cool, corpselike, crazy, daedal, deathlike, deceptive, delusional, delusionary, delusive, delusory, dereistic, dichromatic, disembodied, divers-colored, dreamlike, dreamy, ectoplasmic, eerie, erroneous, ethereal, etheric, fallacious, false, fantastic, ghostish, ghostlike, ghostly, ghosty, glowing, harlequin, harmonious, illusional, illusionary, illusive, illusory, imaginary, incorporeal, kaleidoscopic, many-colored, matching, medley, misleading, monochromatic, monochrome, monochromic, motley, multicolor, multicolored, multicolorous, ostensible, parti-color, parti-colored, phantasmagoric, phantasmal, phantasmic, phantom, phantomic, phantomlike, pigmentary, polychromatic, polychrome, polychromic, prismal, prismatic, psychic, rainbow, seeming, self-deceptive, self-deluding, shadowy, shot, shot through, specious, specterlike, spiritual, spooky, supernatural, supposititious, thunder and lightning, tinctorial, tingent, toning, trichromatic, trichromic, tricolor, tricolored, two-tone, unactual, unearthly, unfounded, unreal, unsubstantial, varicolored, variegated, versicolor, versicolored, visionary, warm, weird, wraithlike, wraithy

ROGET THESAURUS

spectral

Inexistence

N inexistence, nonexistence, nonsubsistence, nonentity, nil, negativeness, nullity, nihility, nihilism, tabula rasa, blank, abeyance, absence, no such thing, nonbeing, nothingness, oblivion, annihilation, extinction, extinguishment, extirpation, Nirvana, obliteration, inexistent, nonexistent, negative, blank, missing, omitted, absent, insubstantial, shadowy, spectral, visionary, unreal, potential, virtual, baseless, in nubibus, unsubstantial, vain, unborn, uncreated, unbegotten, unconceived, unproduced, unmade, perished, annihilated extinct, exhausted, gone, lost, vanished, departed, gone with the wind, defunct, fabulous, ideal, supposititious &c, negatively, virtually, non ens.

Unsubstantiality

N unsubstantiality, insubstantiality, nothingness, nihility, no degree, no part, no quantity, no thing, nothing, naught, nil, nullity, zero, cipher, no one, nobody, never a one, ne'er a one, no such thing, none in the world, nothing whatever, nothing at all, nothing on earth, not a particle, all talk, moonshine, stuff and nonsense, matter of no importance, matter of no consequence, thing of naught, man of straw, John Doe and Richard Roe, faggot voter, nominis umbra, nonentity, flash in the pan, vox et praeterea nihil, shadow, phantom, dream, ignis fatuus, such stuff as dreams are made of, air, thin air, vapor, bubble, baseless fabric of a vision, mockery, hollowness, blank, void, inanity, fool's paradise, unsubstantial, baseless, groundless, ungrounded, without foundation, having no foundation, visionary, immaterial, spectral, dreamy, shadowy, ethereal, airy, cloud built, cloud formed, gossamery, illusory, insubstantial, unreal, vacant, vacuous, empty, eviscerated, blank, hollow, nominal, null, inane, there's nothing in it, an ocean of dreams without a sound.

Demon

N demon, daemon, demonry, demonology, evil genius, fiend, familiar, daeva, devil, bad spirit, unclean spirit, cacodemon, incubus, Eblis, shaitan, succubus, succuba, Frankenstein's monster, Titan, Shedim, Mephistopheles, Asmodeus, Moloch, Belial, Ahriman, fury, harpy, Friar Rush, vampire, ghoul, afreet, barghest, Loki, ogre, ogress, gnome, gin, jinn, imp, deev, lamia, bogie, bogeyman, bogle, nis, kobold, flibbertigibbet, fairy, brownie, pixy, elf, dwarf, urchin, Puck, Robin Goodfellow, leprechaun, Cluricaune, troll, dwerger, sprite, ouphe, bad fairy, nix, nixie, pigwidgeon, will-o'-the wisp, ghost, revenant, specter, apparition, spirit, shade, shadow, vision, hobglobin, goblin, orc, wraith, spook, boggart, banshee, loup-garou, lemures, evil eye, merman, mermaid, merfolk, siren, satyr, faun, manito, manitou, manitu, possession, demonic possession, diabolic possession, insanity, Maxwell's demon, demoniac, demonic, demonical, impish, demoniacal, fiendish, fiend-like, supernatural, weird, uncanny, unearthly, spectral, ghostly, ghost-like, elfin, elvin, elfish, elflike, haunted, pokerish, possessed, possessed by a devil, possessed by a demon, demonically.