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Definitions from WordNet

Definitions from the Web

Knee-jerk

Part of speech: Adjective, Noun

Sense 1 (Adjective): Characterized by an immediate and unthinking response; instinctive, automatic.

Sample sentence 1 (Adjective): His knee-jerk reaction to criticism was to become defensive.

Sample sentence 2 (Adjective): The knee-jerk support for the new policy was surprising.

Sense 2 (Noun): An involuntary, automatic response or reaction to a stimulus, typically without conscious thought.

Sample sentence 1 (Noun): His knee-jerk was an automatic kick, a result of the doctor's test.

Sample sentence 2 (Noun): The audience's knee-jerks were evident as they reacted without considering the consequences.

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