immediate reaction n.
An allergic or immune response that begins within a period lasting from a few minutes to about an hour after exposure to an antigen to which the individual has been sensitized.
That is precisely the reason for this title: to provoke an immediate reaction.
My immediate reaction was, “Gee, he works for the drug company.”
The temptation is to dismiss this sense of injustice as merely the immediate reaction to the outcome of the Zimmerman trial.
His immediate reaction to the news was deep disappointment, even outrage.
But the immediate reaction of the opposition was one of glee.
His own horror was too deep to allow of any immediate reaction.
When the water hit his stomach, there was an immediate reaction.
Travis' immediate reaction was objection, but then he realized Buck's wisdom.
Still there was no immediate reaction on the part of the Caribou.
The more conservative the mind that you scratch upon this extremely delicate topic the more violent the immediate reaction.