Kare wa monoshizuka ni mieru ga, igai ni katsudōteki na seikaku da.

He looks quiet, but he has a surprisingly active personality.

Kinō no tesuto wa, igai na tokoro kara mondai ga shutsudai sareta.

On yesterday's test, questions were asked from an unexpected place.

Kono ryōri wa muzukashisō ni mieru ga, tsukutte miru to igaito kantan da.

This dish looks difficult, but when you try making it, it is surprisingly easy.

Kanojo ga ryūgaku o akirameta to iu no wa, watashi ni totte hijō ni igai na koto datta.

It was highly unexpected for me that she gave up on studying abroad.

Kibishii samusa o yosō shite ita ga, igai ni mo sono hi wa atatakakatta.

I was expecting severe cold, but surprisingly, that day was warm.

Ōku no chōsa o kasaneta kekka, igai na jijitsu ga akiraka ni natta.

As a result of repeated investigations, an unexpected fact was revealed.