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knee–jerk

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adjective \ˈnē-ˌjərk, -ˈjərk\

Simple Definition of knee–jerk

  • : occurring quickly and without thought

  • : often reacting quickly and without thought

Source: Merriam-Webster's Learner's Dictionary

Full Definition of knee–jerk

  1. :  readily predictable :  automatic <knee–jerk reactions>; also :  reacting in a readily predictable way <knee–jerk liberals>

1951

First Known Use of knee–jerk

1951


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to depart quickly

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