You searched for: “most knee jerk
knee-jerk (adjective), more knee-jerk, most knee-jerk
Reacting automatically and without thought: The politician made a knee-jerk reaction by using a vulgar term when a reporter asked him the same question again.

The term, knee-jerk, often has a negative connotation; such as, being too-hasty, to impulsive, and perhaps even being an irrational or unacceptable response.

This entry is located in the following unit: English Words in Action, Group K (page 1)