Wiktionary
floodlike
a. Resembling a flood or some aspect of one.
Usage examples of "floodlike".
The crowds thronged the sidewalks and the glassed overhead walkways that laced the upper stories, burst floodlike from the subways.
Even the parched ground could not absorb this much rainfall in so short a period, and while the drainage had been effective around the headquarters area, this additional runoff, over paved channels, kept sending floodlike waters back toward the south.