Synonyms of hallucinatory

1 Syllable
fake
2 Syllables
phantasm, floater, unreal, blue-sky, ideal
3 Syllables
fanciful, deceitful, febrile, fictional, mistaken, notional, apparent, dreamlike, fallacious, misleading, storybook, chimeral, fictive, fantastic, dreamed-up, phantasmal, chimeric, phantasmic, delirious, fictitious, mind-blowing, ungrounded, mind-changing
4 Syllables
mind-expanding, psychoactive, psychotropic, illusory, delusive, ostensible, chimerical, unreliable, barmecidal, nonexistent, delusory, eye-opening, mind-altering, psychedelic
5 Syllables
phantasmagoric, imaginary
6 Syllables
psychotomimetic, consciousness-expanding, hallucinogenic