existing only in imagination; fanciful; imaginary; not real; chimerical.-having the nature of a phantom; unreal.-indulging the vagaries of imagination; whimsical; full of absurd fancies; capricious; as, fantastic minds; a fantastic mistress.-resembling fantasies in irregularity, caprice, or eccentricity; irregular; oddly shaped; grotesque.-a person given to fantastic dress, manners, etc.; an eccentric person; a fop.