The modernist movement in literature was a 'reaction against' traditional literary conventions.
The announcement produced an angry/stunned 'reaction' from most of the people at the meeting.
There has been a 'mixed reaction' [=people have reacted in different ways] to the new policy.
(..) There are a hundred good campsites. I suggested he choose another. He became furious and said, "Move the dam!" I was amazed at his violent reaction - - until the evidence came to me that he owned those very acres. He'd laid plans to make an enormous profit out of the nickels and dimes - (..)1939 Mr. Smith Goes to Washington