informal Antonyms

formal rigid regular punctilious proper prim prescribed perfunctory orthodox nonsexual nominal nice magic liturgical impressionability impersonal hieratic squashed starchy tight-laced pro forma beside oneself agro prissy white tie semiformal black tie bow-wow aggro totalitarian titular syntactic superabundant stuffy stiff out of the norm grammatic fallibility considerable comfortable cold-blooded civil ceremonious ceremonial buckram bravura bookish bohemian bluenose blemish