Even a bird's brain must be intelligent in a head that size.

They were intelligent - not like the men in the spider city.

This involves the students being intelligent and interested in the work.

I used to think she was quite intelligent, in my stupidity.

But I also think people are much more intelligent in real life than they come across online.

But it is never less than intelligent in its concerns and fascinating as history.

He shows to be quite intelligent in matters that concerns him.

But he is intelligent in the best sense of the word, alive and with an attractive mind.

After years of study, there was still no agreement as to whether or not the aliens were intelligent in their own right.

Or, as he liked to think, they were more intelligent than one another in different ways.