Icelandic is also one of the most difficult languages to learn.

He turned first to the study of Chinese, because it was regarded by many to be the most difficult language to learn.

His brain was working overtime trying to cope with a difficult new language.

C is also a difficult language unless you are planning to use it full time and certainly not something to indulge in for fun.

A strange and difficult language known to very few outside the tribe.

Others use difficult and therefore intimidating language to protect what they have from those who want a share of it.

Navajo is a difficult language because a lot of the words sound similar.

It looked to be a difficult language, perhaps she would pick it up more quickly once they were there.

He had to find a niche in a new culture, a difficult language.

It's a difficult language for any of my race to learn.