torrential

adjective

pouring as in a torrent

Wiktionary

Pronunciation: /təˈɹɛn.tʃəl/ / /tɒɹˈɛn.tʃəl/ / /tɔˈɹɛn.t͡ʃəl/

adj

Etymology: Etymology tree English torrent Proto-Italic *-ālis Latin -ālisder. Old French -ialder. Middle English -ial English -ial English torrential From torrent + -ial.

Coming or characterized by torrents; flowing heavily or in large quantities.
“There was a torrential downpour and we were all soaked.”
“torrential rain”