
I think he's STABLE... enough now
for you to go see him briefly.
Breaking Bad Season 3, Episode 8

"What is the lightest element on Earth
with no STABLE isotope?"
The Big Bang Theory Season 1, Episode 13

My training has proved that I can't
beat a STABLE boy with my left hand.
Game of Thrones Season 4, Episode 7

for synthesizing a new STABLE
super-heavy element?
The Big Bang Theory Season 7, Episode 6

But its most STABLE state is plus-two,
which is usually pale pink.
Breaking Bad Season 4, Episode 4