考かんがえにくい

i-adjective

hard to imagine; unlikely; doubtful

Expresses that something is difficult to conceive or very improbable. Often used when the speaker finds a situation or outcome hard to believe.

• 彼かれがそんなことをするとは考かんがえにくい。

  It's hard to imagine him doing such a thing.

• この計けい画かくが成せい功こうするとは考かんがえにくい。

  It's very doubtful that this plan will succeed.