Igneous never asked unnecessary questions, because he couldn't think of any.

Asking too many unnecessary questions was another of those reasons.

Years ago he had learned that unnecessary questions could be a matter of embarrassment for everyone concerned.

Did you notice that he didn't ask me one unnecessary question?

Which was an unnecessary question, since a runner had come ahead.

I certainly did not want to answer unnecessary questions.

He discouraged unnecessary questions and sent the two-thirds of the men who weren't needed about their business.

"I thought it was only women who were supposed to ask lots of unnecessary questions at times like this."

How could he have asked her such a personal and unnecessary question?

Like most in this trade, he considered smuggling to be a part of it, and never asked unnecessary questions.