He was unrecognizable without his beard.
他刮掉胡子，无人认得出他了。
1.不可辨别
1.very different from the person or place that you remember
1.There was in him, in some nebulous, unrecognizable form, a great artistic reality which was finer than anything she could plan for herself.
他的身上有一种依稀难辨的，伟大的艺术意境，比之她自己所设想的还要高明得多。
2.There was still fire enough to allow of their being put out of shape, and converted into a sort of unrecognizable bar of metal.
火力还够大，很容易使它们失去原来的形状，烧成不能辨认的银块。
3.You knew that this was the beginning of a change, but it was unrecognizable in every way. There was very little in terms of commercial life.
你或许了解那时的中国刚刚开始发生变化，但仅仅是在有限的方面，商业生活没有任何改观。
4.Here and there a remnant of a building, a few shattered walls, stood up like rocks above the expanse of flame, unrecognizable.
到处都是建筑的残迹和一些毁坏的墙，像在广阔火焰中屹立的石头，无法辨认出来…。
5.Animals use camouflage to blend in with their environments in an attempt to be unrecognizable by predators.
动物们使用保护色隐藏在环境之中，从而不被它们的捕食者认出。
6.A few yards to the right lay the month-old corpse of a Japanese Captain, unrecognizable except for his tunic.
在右边几码的地方躺卧着一具死亡了一个多月的日本军官的尸体。除了他的腰带，其他部分早已无法辨认。
7.The place changed a great deal and was almost unrecognizable.
这个地方变化很大，几乎认不出来了。
8.It matters not a bit that they are foreign inventions, often inventions, often unrecognizable to a native English speaker.
即使这些词是外国的创造，而且往往连母语为英语的人也不认识，也没什么问题。
9.All three industries are doomed (if doomed means that they will be unrecognizable in ten--probably three--years). And yet. . .
这三个产业都将注定没落。（如果没落意味着他们将在10或者3年内将变得面目一新。）但是……
10.But eventuality can be cold comfort in an era when tomorrow is radically different from today and unrecognizable compared with yesterday.
但是在一个明天同今天根本不同并且根本无法与昨天相比的时代，最终结果只是一种冷冰冰的安慰罢了。