unstable

Many players said the game's frame rate - which governs the smoothness of on-screen animations - was unstable.

The flooding in Valencia was caused by a Dana phenomenon - when warm, moist air meets cold air, creating an unstable weather system.

Antioxidants neutralize free radicals, which are unstable molecules that harm our cells.

After Trump's former White House Chief of Staff, John Kelly, told the New York Times that Trump spoke approvingly about Adolf Hitler, Harris delivered remarks outside her official residence describing the president as "unhinged and unstable".

It’s the story of California — thrilling and a bit unstable at the same time.