French is usually considered as one of the most difficult languages in the world

Japanese is one of the most difficult languages in the world.

Chinese is one of the most difficult languages in the world

Hungarian ranks as one of the most difficult languages in the world

Arabic is one of the most difficult languages in the world.

Danish is probably one of the most difficult languages in the world

Navajo is one of the most difficult languages in the world

Russian language is very beautiful and considered to be one of the most difficult languages in the world

Mandarin is widely believed to be one of the most difficult languages in the world

Athabascan "as one of the most difficult languages in the world

Korean is considered one of the most difficult languages in the world

Engish is possibly one of the most difficult languages in the world

Finnish ... It is truly one of the most difficult languages in the world.

Czech language is one of the most difficult languages in the world

Lithuanian is supposed to be one of the most difficult languages in the world.

Dutch is one of the most difficult languages in the world

Tamil--said to be one of the most difficult languages in the world.

Romanian. Did you know that it's one of the most difficult languages in the world

Molvanian ranks among the most difficult languages in the world

Basque, apparently it's one of the most difficult languages in the world

Sumerian used to be one of the most difficult languages in the world

Icelandic - one of the most difficult languages in the world

Taiwanese or Vietnamese are the most difficult languages in the world

Portuguese is one of the most difficult languages in the world