knee–jerk
1 ENTRIES FOUND:
Britannica Dictionary definition of KNEE–JERK
always used before a noun
[more knee–jerk; most knee–jerk]
1
:
occurring quickly and without thought
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It was a knee-jerk [=automatic] reaction.
2
disapproving
:
often reacting quickly and without thought
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He said that they were just a bunch of knee-jerk liberals.
