Here it was again, he thought, the unexpected reaction.

In that case the cause was an unexpected reaction to tranquilizers.

"I'm probably older than you think," she said, an unexpected reaction from an author who has been so revealing.

Yet, even as she shot the denial at him, Lisa was aware of an unexpected reaction within her.

Her words had brought out an unexpected reaction in him.

The patient might experience some unexpected reactions from family and friends.

But there was something of value even in this unexpected reaction and capacity for brutality.

This unexpected reaction caused a major outbreak of anger among the people.

A small percentage had unexpected reactions to any new technique.

One could never be sure if the recipient might have an unexpected reaction, go into shock, or worse.