望风扑影

词典解释

[chase the wind and clutch at shadows—make groundless accusations;be taken in by rumours;on a false wrong scent] 知道的并不确实,而据以作无把握、无定向的寻求。同“捕风捉影”

成语解释

比喻做事没有把握，没有目标。也比喻毫无根据地盲目寻求。