(n.) That which has only an apparent existence; an apparition; a specter; a phantasm; a sprite; an airy spirit; an ideal image.

Barmecidal Barmecide Dracula Frankenstein Masan Wolf-man air airy airy nothing apparent apparition apparitional appearance asomatous astral astral spirit autistic banshee bodiless bogey bogeyman brainchild bubble bugaboo bugbear chimaera chimera chimeric control decarnate decarnated deceptive delirium delusion delusional delusionary delusive delusory departed spirit dereistic discarnate disembodied disembodied spirit dreamlike dreamy duppy dybbuk ectoplasmic eidolon erroneous ether ethereal etheric extramundane fallacious FALSE false image fancy fantasque fantastic fantasy fee-faw-fum fiction figment figure form frightener ghost ghostish ghostlike ghostly ghosty ghoul grateful dead guide hallucination hant haunt hobgoblin holy terror horror idle fancy idolum illusion illusional illusionary illusive illusory image imagery imaginary imagination imagining immaterial immateriality impalpable imponderable incorporate incorporeal incorporeal being incorporeity incubus insubstantial insubstantial image intangible invention larva lemures maggot make-believe manes materialization mirage misleading mist monster myth nightmare nonmaterial nonphysical occult ogre ogress oni ostensible otherworldly phantasm phantasma phantasmagoria phantasmagoric phantasmal phantasmic phantomic phantomlike phasm phenomenon poltergeist presence psychic revenant romance scarebabe scarecrow scarer seeming self-deceptive self-deluding shade shadow shadowy shape shrouded spirit sick fancy smoke specious specter specterlike spectral spectral ghost spectrum spirit spiritual spook sprite succubus supernatural supposititious terror theophany thick-coming fancies thin air transmundane trip unactual unearthly unembodied unextended unfleshly unfounded unphysical unreal unsubstantial unsubstantiality unworldly vampire vapor vision visionary waking dream walking dead man wandering soul werewolf whim whimsy wildest dream wildest dreams wraith wraithlike wraithy zombie