plunging
US /ˈplʌn.dʒɪŋ/
UK /ˈplʌn.dʒɪŋ/

1.
falling or dropping straight down at high speed
:
•
The diver made a spectacular plunging entry into the water.
•
We watched the hawk make a sudden plunging dive towards its prey.
falling or dropping straight down at high speed