It's part of an UNLIKELY scenario
that involves sleepwalking...
The Big Bang Theory Season 4, Episode 2
That's very UNLIKELY, Mrs. Koothrappali.
The Big Bang Theory Season 2, Episode 23
Yes, but it's highly UNLIKELY.
Game of Thrones Season 1, Episode 4
A decryption key needed
only in the UNLIKELY event
Westworld Season 2, Episode 7
...their love seems UNLIKELY
and doomed to failure.
The Big Bang Theory Season 8, Episode 7