a shifting series of phantasms, illusions, or deceptive appearances, as in a dream or as created by the imagination.

a changing scene made up of many elements.

an optical illusion produced by a magic lantern or the like in which figures increase or diminish in size, pass into each other, dissolve, etc.

adjective

chimeric , chimerical , delusive , delusory , dreamlike , hallucinatory , illusory , phantasmal , phantasmic , visionary