"pertaining to or resembling a torrent," 1849; see torrent + -ial. Perhaps by influence of French torrentiel. Related: Torrentially.
torrential erosion
torrential adaptations seen in some aquatic forms
torrential abuse
torrential applause
torrential rains
torpidity
torpor
torque
torr
torrent
torrential
torrid
torsion
torso
tort
torte