defiant

adj. desafiante, atrevido, desafiador, farruco, malmandado, provocativo, retador

desafiante, insubordinado, provocador

Ex: Two recently elected school board members have announced their intention of 'ridding the high school of Mrs Panopoulos' -- to which she replied, with a defiant shrug, 'Let them try'.

(adj.) = provocador, osado, desafiante
Ex: Two recently elected school board members have announced their intention of 'ridding the high school of Mrs Panopoulos' -- to which she replied, with a defiant shrug, 'Let them try'.