(pos:副詞)(sim:失驚無神)(sim:無啦啦)(sim:無情情)(sim:無無端端)(sim:無端白事)<explanation>yue:事前完全冇徵象；突然eng:for no reason; all of a sudden; suddenly<eg>yue:佢做乜無端端喊嘅？ (keoi5 zou6 mat1 mou4 dyun1 dyun1 haam3 ge2?)eng:Why is she crying all of a sudden?