
but it looks like
an immensely COMPLEX
encryption key.
Westworld Season 2, Episode 3

...is a COMPLEX socio-economic activity...
The Big Bang Theory Season 3, Episode 3

but by using a computer to solve
COMPLEX mathematical problems.
The Big Bang Theory Season 11, Episode 9

isn’t much more COMPLEX, anyway."
Money Heist Season 1, Episode 12

But then you always did have
that unresolved Oedipal COMPLEX.
The Big Bang Theory Season 8, Episode 23