fanciful

indulging in or influenced by fancy; "a fanciful mind"; "all the notional vagaries of childhood"

not based on fact; unreal; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child's imaginary friends"; "to create a notional world for oneself"

having a curiously intricate quality; "a fanciful pattern with intertwined vines and flowers"