ˈfree fall BrE AmE , free-fall noun [singular, uncountable]
1 . the movement of someone or something through the air without engine power, for example before a ↑ parachute opens after someone has jumped out of a plane
in/into free fall
The spacecraft is now in free fall towards the Earth.
2 . a very fast and uncontrolled fall in the value of something:
the free-fall in housing prices
in/into free fall
The economy is in free fall.
—free-falling adjective