Curiously shaped or constructed; as, she wore a fanciful headdress.

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

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

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

Full of fancy; guided by fancy, rather than by reason and experience; whimsical; as, a fanciful man forms visionary projects.

Conceived in the fancy; not consistent with facts or reason; abounding in ideal qualities or figures; as, a fanciful scheme; a fanciful theory.

see "arbitrary or fanciful"