考えにくい

かんがえにくい

difficult to imagine; quite unlikely to; very doubtful; would not expect

Also written 考え難い、考え悪い

Meanings

I-adjective
difficult to imagine; quite unlikely to; very doubtful; would not expect

ペットのいない生活せいかつなんて考かんがえにくい。

It's hard to imagine a life without pets.
投与とうよする量りょうを減へらすことが副作用ふくさようの危機ききを減少げんしょうさせるとは考かんがえにくい。

It cannot reasonably be assumed that decreasing the dose would reduce the risk of side-effects.
両親りょうしんと一緒いっしょでなければその美術館びじゅつかんに入いれてもらえないだろうということにトムが気きづいていなかったとは、到底とうてい考かんがえにくい。

I think it's highly unlikely that Tom was not aware that he wouldn't be allowed to enter the museum without his parents.