expression, i-adjective
a little difficult; slightly hard
Used literally when something is somewhat difficult or challenging.
この問題はちょっと難しいですね。
This problem is a little difficult, isn't it?
Euphemistic use to indirectly express that something is unlikely or impossible, often as a soft refusal.
明日までに終わらせるのはちょっと難しいです。
It's a bit difficult to finish by tomorrow (implying it's not really possible).