clattering adjective 1noun 1forms 3 adjective1 •In a state or process of being clattered. noun1 •A noise that clatters.Miss Greta closed her eyes. Quickly, however, did she open them again; for a dull noise, with certain whiskings-about and flutterings, together with low clatterings, approached her ear. — 1844 formsclatterings · more clattering · most clattering