#1 antic s. [fantastic, fantastical, grotesque] ludicrously odd; "Hamlet's assumed antic disposition"; "fantastic Halloween costumes"; "a grotesque reflection in the mirror". wn #2 antic n. [joke, prank, trick, caper, put-on] a ludicrous or grotesque act done for fun and amusement. wn #3 antic v. [clown, clown around] act as or like a clown. wn