Part of speech:
a reflex extension of the leg resulting from a sharp tap on the patellar tendon
Produced as an automatic response or reaction:
Happening or arising without apparent external cause; self-generated:
Find another word for knee-jerk. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for knee-jerk, like: involuntary impulse, knee-jerk reflex, automatic, expected, predictable, reflex, spontaneous, automatic response, knee-jerk reaction, patellar-reflex and nanny-state.