相关单词同义词unexpectedly, fortuitously, 近义词 by chance 偶然, unintentionally 非故意地, by accident 偶然, by mistake 错误地, inadvertently 不注意地, out of the blue 出乎意料地, circumstantially 因情形地, incidentally 附带地, unexpectedly 未料到地反义词deliberately, 故意地intentionally, 有意地designedly, 故意地临近词accidental, accidental case, accidental harm, accidental gybe, accidental fire, accidental form, accidental bias, Accidental shape, accidental sport, accidental wound, accidental cover相似词accident and emergency, accident-prone, accidental, accidental death, accidentally on purpose idiom, accidents will happen idiom, acclaim, acclamation, 返回 accidentally