gut reaction to something
gut reaction to (something)
A reaction to a situation based on a person's instinct and feelings, rather than on a logical analysis. My initial gut reaction to news of the merger was that it would result in a drop in stock prices, but the opposite turned out to be true.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
gut reaction (to something)
n. a basic and immediate response to something. Her gut reaction to the plan is basically a good one.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.