Kono pen wa sukoshi kakinikui desu ne.

This pen is a bit difficult to write with, isn't it?

Kare no setsumei wa senmon yōgo ga ōkute wakarinikui desu.

His explanation is hard to understand because there are many technical terms.

Kono oniku wa sukoshi katakute tabenikui desu ne.

This meat is a bit tough and hard to eat.

Ame no hi wa kono kutsu dato sukoshi arukinikui desu.

On rainy days, these shoes make it a bit difficult to walk.

Aite no kimochi o kangaeru to, hontō no koto wa sukoshi iinikui desu.

Considering the other person's feelings, the truth is a bit difficult to say.

Atarashii sumātofon no sōsa wa nareru made tsukainikui to kanjimasu.

I feel that the new smartphone is difficult to use until you get used to its operation.