n. 25B6; noun
he was talking nonsense : RUBBISH, balderdash, gibberish, claptrap, blarney, blather, garbage; informal hogwash, rot, guff, baloney, tripe, drivel, gobbledegook, bilge, bosh, bunk, hot air, piffle, poppycock, phooey, twaddle; Brit. informal cobblers, codswallop, tosh, double Dutch; Scottish & N. English informal havers; N. Amer. informal flapdoodle, bushwa, applesauce; informal, dated bunkum, tommyrot.
she stands no nonsense : MISCHIEF, naughtiness, bad behaviour, misbehaviour, misconduct, misdemeanour; pranks, tricks, clowning, buffoonery, funny business; informal tomfoolery, monkey business, shenanigans, hanky-panky; Brit. informal monkey tricks, jiggery-pokery.
they dismissed the concept as a nonsense : ABSURDITY, folly, stupidity, ludicrousness, inanity, foolishness, idiocy, insanity, madness.
sense, wisdom.