Grammar fix
a knee-jerk reaction
instinctive, unthinking reaction
an immediate response to something, made without thinking carefully, often emotional or automatic rather than considered.
Hear it in context
Notice where the phrase sounds natural.
His comment was just a knee-jerk reaction to the criticism, not a well-thought-out response.
In my opinion, governments should avoid making knee-jerk reactions to public pressure and instead take time to consider the long-term consequences.
Fix the pattern
One small grammar move makes it sound right.
Not: Don't make a knee-jerk reaction.
Say: Don't have a knee-jerk reaction. / Don't react in a knee-jerk way.
You 'have' a knee-jerk reaction (or react that way); 'make' sounds off.
Which sounds natural?
Tap the one a native speaker would say.
The idiom names the whole thing — automatic, unconsidered, usually criticised.
Build natural chunks
Words that usually travel with it.
a knee-jerk reaction/response
- reaction
- response
- avoid
- typical