
- Sheldon, you are really being UNREASONABLE.
- Am I?
The Big Bang Theory Season 1, Episode 15

Don't you think
it's UNREASONABLE
The Big Bang Theory Season 12, Episode 6

You're being UNREASONABLE.
Why can't I have a desk?
The Big Bang Theory Season 4, Episode 4

I don't understand.
If it's UNREASONABLE,
The Big Bang Theory Season 12, Episode 6

And he agrees that he was UNREASONABLE
and out of line.
The Big Bang Theory Season 2, Episode 7