The political systems of the two countries, despite some superficial similarities of structure, were in fact rather different.

Despite a superficial similarity to concrete it is entirely natural.

He is no doubt aware of the superficial similarities between the two.

And that's just as well, because despite their superficial similarities, they really weren't part of the same world.

The tart has a superficial similarity to the American black and white cookie.

I've seen pictures of both and there is some superficial similarity.

No two alike, once one got past superficial similarities of pitch and accent.

I may show you the way because of the superficial similarity of the color structure.

There are some superficial similarities between the two, but actually, they are really very different.

Aside from those superficial similarities, she didn't look at all like my sister, really.