unreal
chimerical
delusional
delusionary
delusive
delusory
dreamy
fancied
fanciful
fantastic
hallucinational
hallucinative
hallucinatory
illusional
illusionary
illusive
illusory
imaginary
insubstantial
surreal
unbelievable
unsubstantial
visionary
dizzy
eerie
ethereal
euphoric
ghostlike
hazy
hypnotic
impalpable
indistinct
nebulous
nightmarish
otherworldly
pellucid
phantasmal
terrify
unfocused
unsatisfying