难以形容的

The beauty of a sunset is ineffable.

日落的美是难以形容的。

The unspeakable odour clung to the room.

一股难以形容的斥着房间散不出去。

It did not exactly beggar description, but it certainly had word on the lookout for the mendicancy squad.

虽然不能说绝对的难以形容际上，确与贫民窟也相差无几了。