plummeted
Fell extremely fast
Plummeted is the past tense of plummet, meaning to fall straight down rapidly.
A bird plummeted from the sky; stock prices plummeted after the announcement.
The word implies sudden, dramatic descent—physical or figurative: Her confidence plummeted when she saw the test results.
drop
Fall or release
plunge · pitch · swoop · spiral · hurtle · cascade · sink · topple · freefall · nosedive
crash
Sudden violent impact
freefall · tumble · drop · sink · slump · downturn · recession · depression · contraction · devaluation
plummetedamassed
Gathered in abundance
accumulated · flourished · thrived · prospered · boomed