乍然猛然；陡然。例乍然故去。英suddenly; unexpectly;[查看详情]

猛然突然忽然。例猛然站起来。猛然大吼一声。英abruptly; suddenly;[查看详情]

突然表示发生得很急促；忽然；猝然。例突然停止。英suddenly; unexpectedly; out of the blue; abruptly;[查看详情]

骤然突然；忽然。例骤然响起雷鸣般的掌声。骤然离去。英suddenly; abruptly;[查看详情]

忽然突然地动作、行为的发生或情况的变化来得迅速又出乎意料地。例忽然抚尺一下。——《虞初新志秋声诗自序》天气忽然冷了起来。英suddenly;[查看详情]