"She redt me a random shidduch, I told her it's not shayich to me."

"It's not shayach that someone can jump over that hurdle." (Weiser).

"This puzzle is so hard, it's not shayach." (Weiser).

"I tried to find time to learn with him, but it wasn't shayach." (Weiser).

"I told her it's not shayekh, though I'd really like to meet her, call me back on Tu BiShvat when I'm out of the freezer!" (source)

"Was there ever a havamina (hava amina) that the shidduch was shayach? Or that he'd become a chosson?" (source)