antic, fantastic, fantastical, grotesque -- (ludicrously odd; "Hamlet's assumed antic disposition"; "fantastic Halloween costumes"; "a grotesque reflection in the mirror")
fantastic, grand, howling, marvelous, marvellous, rattling, terrific, tremendous, wonderful, wondrous -- (extraordinarily good or great ; used especially as intensifiers; "a fantastic trip to the Orient"; "the film was fantastic!"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement")
fantastic, wild -- (fanciful and unrealistic; foolish; "a fantastic idea of his own importance")
fantastic, fantastical -- (existing in fancy only; "fantastic figures with bulbous heads the circumference of a bushel"- Nathaniel Hawthorne)
(Sound)
