flatten off/out
phrasal verb with flatten verb [ I or T ] uk/ˈflætən/ us
to stop rising or falling, and stay at the same level:
If the housing market continues to flatten out or even decline, we're in for some tough times.
prices/revenues/sales flatten off/out A fall in house prices is unlikely; prices are more likely to flatten off.
flattening out
noun [ S ]
There's been a flattening out of profit in Australia, and the bad debts expenses were higher than expected.